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Finding the Fourth Proportional to 327,697.40, 491,562.30 and 170,233.40

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Solution

The fourth proportional to 327,697.40, 491,562.30 and 170,233.40 is: 255,358.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,697.40 : 491,562.30 = 170,233.40 : x
  2. Step 2: Convert to fraction form
    327,697.40/491,562.30 = 170,233.40/x
  3. Step 3: Cross multiply
    327,697.40x = 491,562.30 × 170,233.40
  4. Step 4: Simplify right side
    327,697.40x = 83,680,321,640.82
  5. Step 5: Solve for x
    x = 83,680,321,640.82/327,697.40
  6. Step 6: Final answer
    x = 255,358.52

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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.