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Finding the Fourth Proportional to 629,856,656.80, 944,784,985.20 and 169,841,327.20

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Solution

The fourth proportional to 629,856,656.80, 944,784,985.20 and 169,841,327.20 is: 254,761,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,856,656.80 : 944,784,985.20 = 169,841,327.20 : x
  2. Step 2: Convert to fraction form
    629,856,656.80/944,784,985.20 = 169,841,327.20/x
  3. Step 3: Cross multiply
    629,856,656.80x = 944,784,985.20 × 169,841,327.20
  4. Step 4: Simplify right side
    629,856,656.80x = 160,463,535,805,000,352
  5. Step 5: Solve for x
    x = 160,463,535,805,000,352/629,856,656.80
  6. Step 6: Final answer
    x = 254,761,990.80

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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.