The meaning is not the same. While God guides our steps by revealing what His pleasure is, He does not ordain them in a mechanical Calvinist way.
I'd like to know where you get the idea that Adam's sin, described with great care in Genesis, was "ordained" by God. We sure know where Adam was guided, -- away from the Tree. Does God guide in one way and ordain the other?
The verses in Proverbs are not specific as to ordainment vs. guidance, nor do the latter ones apply to men universally: one is about kings, the other about chance.
1) God placed man in the garden.
2) God placed the fruit tree in the garden.
3) God had the serpent go into the garden.
4) God knew what would happen.
Seems simple enough.