Home / 658,176.10-987,264.15-392,236.90

Finding the Fourth Proportional to 658,176.10, 987,264.15 and 392,236.90

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Solution

The fourth proportional to 658,176.10, 987,264.15 and 392,236.90 is: 588,355.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,176.10 : 987,264.15 = 392,236.90 : x
  2. Step 2: Convert to fraction form
    658,176.10/987,264.15 = 392,236.90/x
  3. Step 3: Cross multiply
    658,176.10x = 987,264.15 × 392,236.90
  4. Step 4: Simplify right side
    658,176.10x = 387,241,429,677.14
  5. Step 5: Solve for x
    x = 387,241,429,677.14/658,176.10
  6. Step 6: Final answer
    x = 588,355.35

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Similar ratio
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1.5x scale

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.