1.

If 300000, 200000, x and 400000 are in proportional, then the value of x is:(A) 800000(B) 600000(C) 300000(D) 1200000(E) None of these​

Answer» B - 600000Step-by-step EXPLANATION:Product of MEANS = Product of extremes300000*400000 = 200000*x120000000000 = 200000x120000000000/200000 = x600000 = x


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