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Finding the Fourth Proportional to 393,147,166.88, 542,739,508.08 and 244,516,198.88

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Solution

The fourth proportional to 393,147,166.88, 542,739,508.08 and 244,516,198.88 is: 337,554,515.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,147,166.88 : 542,739,508.08 = 244,516,198.88 : x
  2. Step 2: Convert to fraction form
    393,147,166.88/542,739,508.08 = 244,516,198.88/x
  3. Step 3: Cross multiply
    393,147,166.88x = 542,739,508.08 × 244,516,198.88
  4. Step 4: Simplify right side
    393,147,166.88x = 132,708,601,497,722,656
  5. Step 5: Solve for x
    x = 132,708,601,497,722,656/393,147,166.88
  6. Step 6: Final answer
    x = 337,554,515.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.