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Finding the Fourth Proportional to 1,250,695,978.80, 1,876,057,439.28 and 377,304,913.84

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Solution

The fourth proportional to 1,250,695,978.80, 1,876,057,439.28 and 377,304,913.84 is: 565,961,434.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250,695,978.80 : 1,876,057,439.28 = 377,304,913.84 : x
  2. Step 2: Convert to fraction form
    1,250,695,978.80/1,876,057,439.28 = 377,304,913.84/x
  3. Step 3: Cross multiply
    1,250,695,978.80x = 1,876,057,439.28 × 377,304,913.84
  4. Step 4: Simplify right side
    1,250,695,978.80x = 707,845,690,486,431,360
  5. Step 5: Solve for x
    x = 707,845,690,486,431,360/1,250,695,978.80
  6. Step 6: Final answer
    x = 565,961,434.66

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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.