Please, a link to the casualty ratio of six-to-one, or are you using Biden fuzzy math?
Here is one report, dated July 1, 2024.
That report also mentions a Mediazona report of 64,000 Russian soldiers confirmed killed, but does not mention Mediazona's estimate, based on probate registries, of up to 140,000 Russian military deaths in the Ukraine war.
Given a normal three-to-one ratio -- three wounded, captured or missing to every one killed or died -- 140,000 Russian soldiers died corresponds to 560,000 total Russian casualties, which is almost exactly what Ukrainians have reported so far -- those numbers also approximated by UK estimates.
US estimates put the **minimum** Russian losses at about 1/3 less = ~350,000.
Ukraine's count of Russian casualties, so far in just 2024, is about 150,000 for the gains of, at most, 100 square miles of Ukrainian territory, or roughly 1,500 Russian casualties per square mile.
If Ukrainian casualties are running 1/6 the Russian numbers, it means about 25,000 so far in 2024, including roughly 6,000 killed.
In US equivalent terms, 6,000 Ukrainian deaths over six months of 2024 corresponds to roughly 120,000 annual US deaths, which is a lot: