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Finding the Fourth Proportional to 252,747,658.40, 379,121,487.60 and 252,747,658.40

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Solution

The fourth proportional to 252,747,658.40, 379,121,487.60 and 252,747,658.40 is: 379,121,487.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,747,658.40 : 379,121,487.60 = 252,747,658.40 : x
  2. Step 2: Convert to fraction form
    252,747,658.40/379,121,487.60 = 252,747,658.40/x
  3. Step 3: Cross multiply
    252,747,658.40x = 379,121,487.60 × 252,747,658.40
  4. Step 4: Simplify right side
    252,747,658.40x = 95,822,068,240,024,640
  5. Step 5: Solve for x
    x = 95,822,068,240,024,640/252,747,658.40
  6. Step 6: Final answer
    x = 379,121,487.60

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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.