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Finding the Fourth Proportional to 482,591.40, 723,887.10 and 127,641.30

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Solution

The fourth proportional to 482,591.40, 723,887.10 and 127,641.30 is: 191,461.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,591.40 : 723,887.10 = 127,641.30 : x
  2. Step 2: Convert to fraction form
    482,591.40/723,887.10 = 127,641.30/x
  3. Step 3: Cross multiply
    482,591.40x = 723,887.10 × 127,641.30
  4. Step 4: Simplify right side
    482,591.40x = 92,397,890,497.23
  5. Step 5: Solve for x
    x = 92,397,890,497.23/482,591.40
  6. Step 6: Final answer
    x = 191,461.95

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Similar ratio
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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.