Home / 656,930.40-985,424.76-257,535.60

Finding the Fourth Proportional to 656,930.40, 985,424.76 and 257,535.60

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Solution

The fourth proportional to 656,930.40, 985,424.76 and 257,535.60 is: 386,314.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,930.40 : 985,424.76 = 257,535.60 : x
  2. Step 2: Convert to fraction form
    656,930.40/985,424.76 = 257,535.60/x
  3. Step 3: Cross multiply
    656,930.40x = 985,424.76 × 257,535.60
  4. Step 4: Simplify right side
    656,930.40x = 253,781,956,821.46
  5. Step 5: Solve for x
    x = 253,781,956,821.46/656,930.40
  6. Step 6: Final answer
    x = 386,314.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.