The Cracked story links to: http://news.discovery.com/history/amelia-earhart-resting-place.html — I hadn’t noticed that before.
With the site
http://www.movable-type.co.uk/scripts/latlong.html
I calculated the distance between Howland Island and Gardner Island to be 653.1 km or 352 nautical miles.
Now some of the comments on the discovery.com page have her with 26 miles of fuel left at Howland; others have her with 1 hr 5 minutes of fuel. If I understand your link correctly
the 1 hr 5 min would be 119 nm at average wind and 141 nm at no wind — not enough to make it to Gardner.
However your site makes it sound like there might have been as much as 4 hr of fuel left? If so that would be 440 nm at average wind, with Gardner Island well within range.
But this page from your site makes the Cracked claim very dubious:
http://www.ameliaearhartbook.com/new_page_14.htm
Please note that “your site” is only “mine” in that I posted the link. I found it using google and found the discussion about the flight times and fuel ranges interesting based upon my discussions with an aviator friend who was also interested in where she could have reached on her fuel load and weather conditions and a couple of “what if” factors that we thought up. I’ve long though that Fred Goerner’s theory and research makes a lot of sense.