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Finding the Fourth Proportional to 655,644,246.30, 904,840,637.13 and 373,398,622.02

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Solution

The fourth proportional to 655,644,246.30, 904,840,637.13 and 373,398,622.02 is: 515,319,472.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,644,246.30 : 904,840,637.13 = 373,398,622.02 : x
  2. Step 2: Convert to fraction form
    655,644,246.30/904,840,637.13 = 373,398,622.02/x
  3. Step 3: Cross multiply
    655,644,246.30x = 904,840,637.13 × 373,398,622.02
  4. Step 4: Simplify right side
    655,644,246.30x = 337,866,247,052,040,832
  5. Step 5: Solve for x
    x = 337,866,247,052,040,832/655,644,246.30
  6. Step 6: Final answer
    x = 515,319,472.35

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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.