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Finding the Fourth Proportional to 488,453,105.80, 732,679,658.70 and 485,051,883.40

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Solution

The fourth proportional to 488,453,105.80, 732,679,658.70 and 485,051,883.40 is: 727,577,825.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,453,105.80 : 732,679,658.70 = 485,051,883.40 : x
  2. Step 2: Convert to fraction form
    488,453,105.80/732,679,658.70 = 485,051,883.40/x
  3. Step 3: Cross multiply
    488,453,105.80x = 732,679,658.70 × 485,051,883.40
  4. Step 4: Simplify right side
    488,453,105.80x = 355,387,648,381,304,192
  5. Step 5: Solve for x
    x = 355,387,648,381,304,192/488,453,105.80
  6. Step 6: Final answer
    x = 727,577,825.10

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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.