Home / 675,938.14-932,839.80-389,476.78

Finding the Fourth Proportional to 675,938.14, 932,839.80 and 389,476.78

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Solution

The fourth proportional to 675,938.14, 932,839.80 and 389,476.78 is: 537,503.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,938.14 : 932,839.80 = 389,476.78 : x
  2. Step 2: Convert to fraction form
    675,938.14/932,839.80 = 389,476.78/x
  3. Step 3: Cross multiply
    675,938.14x = 932,839.80 × 389,476.78
  4. Step 4: Simplify right side
    675,938.14x = 363,319,441,559.84
  5. Step 5: Solve for x
    x = 363,319,441,559.84/675,938.14
  6. Step 6: Final answer
    x = 537,503.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.