Home / 661,609,127.60-992,413,691.40-629,864,385.20

Finding the Fourth Proportional to 661,609,127.60, 992,413,691.40 and 629,864,385.20

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Solution

The fourth proportional to 661,609,127.60, 992,413,691.40 and 629,864,385.20 is: 944,796,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,609,127.60 : 992,413,691.40 = 629,864,385.20 : x
  2. Step 2: Convert to fraction form
    661,609,127.60/992,413,691.40 = 629,864,385.20/x
  3. Step 3: Cross multiply
    661,609,127.60x = 992,413,691.40 × 629,864,385.20
  4. Step 4: Simplify right side
    661,609,127.60x = 625,086,039,597,723,520
  5. Step 5: Solve for x
    x = 625,086,039,597,723,520/661,609,127.60
  6. Step 6: Final answer
    x = 944,796,577.80

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Double scale
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Similar ratio
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1.5x scale

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.