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Finding the Fourth Proportional to 422,698,227.20, 583,327,778.80 and 237,055,257.12

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Solution

The fourth proportional to 422,698,227.20, 583,327,778.80 and 237,055,257.12 is: 327,138,624.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,698,227.20 : 583,327,778.80 = 237,055,257.12 : x
  2. Step 2: Convert to fraction form
    422,698,227.20/583,327,778.80 = 237,055,257.12/x
  3. Step 3: Cross multiply
    422,698,227.20x = 583,327,778.80 × 237,055,257.12
  4. Step 4: Simplify right side
    422,698,227.20x = 138,280,916,588,672,480
  5. Step 5: Solve for x
    x = 138,280,916,588,672,480/422,698,227.20
  6. Step 6: Final answer
    x = 327,138,624.41

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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.