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Finding the Fourth Proportional to 428,553.34, 591,363.84 and 237,550.48

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Solution

The fourth proportional to 428,553.34, 591,363.84 and 237,550.48 is: 327,797.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,553.34 : 591,363.84 = 237,550.48 : x
  2. Step 2: Convert to fraction form
    428,553.34/591,363.84 = 237,550.48/x
  3. Step 3: Cross multiply
    428,553.34x = 591,363.84 × 237,550.48
  4. Step 4: Simplify right side
    428,553.34x = 140,478,764,046.64
  5. Step 5: Solve for x
    x = 140,478,764,046.64/428,553.34
  6. Step 6: Final answer
    x = 327,797.62

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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.