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Finding the Fourth Proportional to 542,603.60, 813,905.40 and 482,469.20

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Solution

The fourth proportional to 542,603.60, 813,905.40 and 482,469.20 is: 723,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,603.60 : 813,905.40 = 482,469.20 : x
  2. Step 2: Convert to fraction form
    542,603.60/813,905.40 = 482,469.20/x
  3. Step 3: Cross multiply
    542,603.60x = 813,905.40 × 482,469.20
  4. Step 4: Simplify right side
    542,603.60x = 392,684,287,213.68
  5. Step 5: Solve for x
    x = 392,684,287,213.68/542,603.60
  6. Step 6: Final answer
    x = 723,703.80

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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.