Divide R4 625 amongst Andrew ,Brendon, and Clair so that for every R4 that Andrew gets, Brendon gets R3 and for every R4 that Brendon gets,

would you mind explaining what R4 and R3 is?

a/b = 4/3      b/c = 4/3

a = 4/3 b       c = 3/4 b     

a + b + c = 4625

4/3 b   + b   + 3/4 b = 4625

3 1/12 b = 4625

b = 1500      then a = 2000   and   c = 1125