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Finding the Fourth Proportional to 574,646,819.20, 861,970,228.80 and 565,576,892.80

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Solution

The fourth proportional to 574,646,819.20, 861,970,228.80 and 565,576,892.80 is: 848,365,339.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,646,819.20 : 861,970,228.80 = 565,576,892.80 : x
  2. Step 2: Convert to fraction form
    574,646,819.20/861,970,228.80 = 565,576,892.80/x
  3. Step 3: Cross multiply
    574,646,819.20x = 861,970,228.80 × 565,576,892.80
  4. Step 4: Simplify right side
    574,646,819.20x = 487,510,443,690,809,024
  5. Step 5: Solve for x
    x = 487,510,443,690,809,024/574,646,819.20
  6. Step 6: Final answer
    x = 848,365,339.20

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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.