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Finding the Fourth Proportional to 373,028.67, 514,780.20 and 203,262.78

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Solution

The fourth proportional to 373,028.67, 514,780.20 and 203,262.78 is: 280,502.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,028.67 : 514,780.20 = 203,262.78 : x
  2. Step 2: Convert to fraction form
    373,028.67/514,780.20 = 203,262.78/x
  3. Step 3: Cross multiply
    373,028.67x = 514,780.20 × 203,262.78
  4. Step 4: Simplify right side
    373,028.67x = 104,635,654,540.96
  5. Step 5: Solve for x
    x = 104,635,654,540.96/373,028.67
  6. Step 6: Final answer
    x = 280,502.98

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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.