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Finding the Fourth Proportional to 543,070,469.70, 814,605,704.55 and 488,650,911.30

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Solution

The fourth proportional to 543,070,469.70, 814,605,704.55 and 488,650,911.30 is: 732,976,366.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,070,469.70 : 814,605,704.55 = 488,650,911.30 : x
  2. Step 2: Convert to fraction form
    543,070,469.70/814,605,704.55 = 488,650,911.30/x
  3. Step 3: Cross multiply
    543,070,469.70x = 814,605,704.55 × 488,650,911.30
  4. Step 4: Simplify right side
    543,070,469.70x = 398,057,819,878,536,064
  5. Step 5: Solve for x
    x = 398,057,819,878,536,064/543,070,469.70
  6. Step 6: Final answer
    x = 732,976,366.95

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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.