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Finding the Fourth Proportional to 629,943,691.80, 944,915,537.70 and 580,059,096.60

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Solution

The fourth proportional to 629,943,691.80, 944,915,537.70 and 580,059,096.60 is: 870,088,644.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,943,691.80 : 944,915,537.70 = 580,059,096.60 : x
  2. Step 2: Convert to fraction form
    629,943,691.80/944,915,537.70 = 580,059,096.60/x
  3. Step 3: Cross multiply
    629,943,691.80x = 944,915,537.70 × 580,059,096.60
  4. Step 4: Simplify right side
    629,943,691.80x = 548,106,853,161,565,312
  5. Step 5: Solve for x
    x = 548,106,853,161,565,312/629,943,691.80
  6. Step 6: Final answer
    x = 870,088,644.90

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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.