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Finding the Fourth Proportional to 448,687.31, 619,190.42 and 244,742.61

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Solution

The fourth proportional to 448,687.31, 619,190.42 and 244,742.61 is: 337,745.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,687.31 : 619,190.42 = 244,742.61 : x
  2. Step 2: Convert to fraction form
    448,687.31/619,190.42 = 244,742.61/x
  3. Step 3: Cross multiply
    448,687.31x = 619,190.42 × 244,742.61
  4. Step 4: Simplify right side
    448,687.31x = 151,542,279,477.80
  5. Step 5: Solve for x
    x = 151,542,279,477.80/448,687.31
  6. Step 6: Final answer
    x = 337,745.86

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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.