X/Y=Y/M=M/N=5/8,
X=5/8Y
Y=5/8M
M=5/8N
X=5/8*5/8*5/8N=125N/512
Y=5/8*5/8N=25N/64
M=5/8N
X Y M N 都为正整数
N至少为512
X=125
Y=200
M=320
X+Y+M+N的最小值为512+125+200+320=1157 X/Y=Y/M=M/N=5/8,
X=5/8Y
Y=5/8M
M=5/8N
X=5/8*5/8*5/8N=125N/512
Y=5/8*5/8N=25N/64
M=5/8N
X Y M N 都为正整数
N至少为512
X=125
Y=200
M=320
X+Y+M+N的最小值为512+125+200+320=1157