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Finding the Fourth Proportional to 327,624.48, 491,242.80 and 127,711.48

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Solution

The fourth proportional to 327,624.48, 491,242.80 and 127,711.48 is: 191,491.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,624.48 : 491,242.80 = 127,711.48 : x
  2. Step 2: Convert to fraction form
    327,624.48/491,242.80 = 127,711.48/x
  3. Step 3: Cross multiply
    327,624.48x = 491,242.80 × 127,711.48
  4. Step 4: Simplify right side
    327,624.48x = 62,737,345,027.34
  5. Step 5: Solve for x
    x = 62,737,345,027.34/327,624.48
  6. Step 6: Final answer
    x = 191,491.63

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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.