Let \(a,b,c,d \) be real numbers such that \(\frac{(a - b)(c - d)}{(b - c)(d - a)} = \frac{2}{5}.\) Find the sum of all possible values of \(\frac{(a - c)(b - d)}{(a - b)(c - d)}.\)
a=67, b=11, c=4, d=7
For first expression =2 /5
For 2nd expression =651 / 11
+143 
