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Finding the Fourth Proportional to 534,905,159.20, 747,336,672.80 and 534,905,159.20

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Solution

The fourth proportional to 534,905,159.20, 747,336,672.80 and 534,905,159.20 is: 747,336,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,905,159.20 : 747,336,672.80 = 534,905,159.20 : x
  2. Step 2: Convert to fraction form
    534,905,159.20/747,336,672.80 = 534,905,159.20/x
  3. Step 3: Cross multiply
    534,905,159.20x = 747,336,672.80 × 534,905,159.20
  4. Step 4: Simplify right side
    534,905,159.20x = 399,754,241,940,082,304
  5. Step 5: Solve for x
    x = 399,754,241,940,082,304/534,905,159.20
  6. Step 6: Final answer
    x = 747,336,672.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.