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Finding the Fourth Proportional to 664,304,439.20, 996,456,658.80 and 664,304,439.20

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Solution

The fourth proportional to 664,304,439.20, 996,456,658.80 and 664,304,439.20 is: 996,456,658.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,304,439.20 : 996,456,658.80 = 664,304,439.20 : x
  2. Step 2: Convert to fraction form
    664,304,439.20/996,456,658.80 = 664,304,439.20/x
  3. Step 3: Cross multiply
    664,304,439.20x = 996,456,658.80 × 664,304,439.20
  4. Step 4: Simplify right side
    664,304,439.20x = 661,950,581,911,239,808
  5. Step 5: Solve for x
    x = 661,950,581,911,239,808/664,304,439.20
  6. Step 6: Final answer
    x = 996,456,658.80

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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.