2.2 pound = 1 kilogram
1 pound = [tex] \frac{1}{2.2} [/tex] = [tex] \frac{5}{11} [/tex]
400 pounds = [tex] \frac{5}{11} [/tex] x 400 = [tex] \frac{2000}{11} [/tex]
1 kilogram = 1000 grams
[tex] \frac{2000}{11} [/tex] killograms = [tex] \frac{2000}{11} [/tex] x 1000 = 18181.82 grams
