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Finding the Fourth Proportional to 327,132.91, 490,699.37 and 90,475.59

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Solution

The fourth proportional to 327,132.91, 490,699.37 and 90,475.59 is: 135,713.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,132.91 : 490,699.37 = 90,475.59 : x
  2. Step 2: Convert to fraction form
    327,132.91/490,699.37 = 90,475.59/x
  3. Step 3: Cross multiply
    327,132.91x = 490,699.37 × 90,475.59
  4. Step 4: Simplify right side
    327,132.91x = 44,396,317,079.69
  5. Step 5: Solve for x
    x = 44,396,317,079.69/327,132.91
  6. Step 6: Final answer
    x = 135,713.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.