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Finding the Fourth Proportional to 501,423,115.20, 752,134,672.80 and 501,423,115.20

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Solution

The fourth proportional to 501,423,115.20, 752,134,672.80 and 501,423,115.20 is: 752,134,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,423,115.20 : 752,134,672.80 = 501,423,115.20 : x
  2. Step 2: Convert to fraction form
    501,423,115.20/752,134,672.80 = 501,423,115.20/x
  3. Step 3: Cross multiply
    501,423,115.20x = 752,134,672.80 × 501,423,115.20
  4. Step 4: Simplify right side
    501,423,115.20x = 377,137,710,685,308,672
  5. Step 5: Solve for x
    x = 377,137,710,685,308,672/501,423,115.20
  6. Step 6: Final answer
    x = 752,134,672.80

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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.