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Finding the Fourth Proportional to 428,360.32, 591,122.37 and 237,391.48

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Solution

The fourth proportional to 428,360.32, 591,122.37 and 237,391.48 is: 327,592.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,360.32 : 591,122.37 = 237,391.48 : x
  2. Step 2: Convert to fraction form
    428,360.32/591,122.37 = 237,391.48/x
  3. Step 3: Cross multiply
    428,360.32x = 591,122.37 × 237,391.48
  4. Step 4: Simplify right side
    428,360.32x = 140,327,414,275.41
  5. Step 5: Solve for x
    x = 140,327,414,275.41/428,360.32
  6. Step 6: Final answer
    x = 327,592.00

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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.