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Finding the Fourth Proportional to 327,491.75, 491,237.54 and 90,834.46

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Solution

The fourth proportional to 327,491.75, 491,237.54 and 90,834.46 is: 136,251.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,491.75 : 491,237.54 = 90,834.46 : x
  2. Step 2: Convert to fraction form
    327,491.75/491,237.54 = 90,834.46/x
  3. Step 3: Cross multiply
    327,491.75x = 491,237.54 × 90,834.46
  4. Step 4: Simplify right side
    327,491.75x = 44,621,293,767.27
  5. Step 5: Solve for x
    x = 44,621,293,767.27/327,491.75
  6. Step 6: Final answer
    x = 136,251.66

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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.