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Finding the Fourth Proportional to 428,344.92, 591,119.48 and 237,361.50

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Solution

The fourth proportional to 428,344.92, 591,119.48 and 237,361.50 is: 327,560.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,344.92 : 591,119.48 = 237,361.50 : x
  2. Step 2: Convert to fraction form
    428,344.92/591,119.48 = 237,361.50/x
  3. Step 3: Cross multiply
    428,344.92x = 591,119.48 × 237,361.50
  4. Step 4: Simplify right side
    428,344.92x = 140,309,006,452.02
  5. Step 5: Solve for x
    x = 140,309,006,452.02/428,344.92
  6. Step 6: Final answer
    x = 327,560.80

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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.