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Finding the Fourth Proportional to 458,022.46, 631,489.80 and 327,356.05

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Solution

The fourth proportional to 458,022.46, 631,489.80 and 327,356.05 is: 451,335.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,022.46 : 631,489.80 = 327,356.05 : x
  2. Step 2: Convert to fraction form
    458,022.46/631,489.80 = 327,356.05/x
  3. Step 3: Cross multiply
    458,022.46x = 631,489.80 × 327,356.05
  4. Step 4: Simplify right side
    458,022.46x = 206,722,006,543.29
  5. Step 5: Solve for x
    x = 206,722,006,543.29/458,022.46
  6. Step 6: Final answer
    x = 451,335.96

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1.5x scale

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.