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Finding the Fourth Proportional to 629,856,687.60, 944,785,031.40 and 586,809,966.60

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Solution

The fourth proportional to 629,856,687.60, 944,785,031.40 and 586,809,966.60 is: 880,214,949.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,856,687.60 : 944,785,031.40 = 586,809,966.60 : x
  2. Step 2: Convert to fraction form
    629,856,687.60/944,785,031.40 = 586,809,966.60/x
  3. Step 3: Cross multiply
    629,856,687.60x = 944,785,031.40 × 586,809,966.60
  4. Step 4: Simplify right side
    629,856,687.60x = 554,409,272,720,013,952
  5. Step 5: Solve for x
    x = 554,409,272,720,013,952/629,856,687.60
  6. Step 6: Final answer
    x = 880,214,949.90

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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.