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Finding the Fourth Proportional to 494,448.20, 741,672.30 and 120,471.20

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Solution

The fourth proportional to 494,448.20, 741,672.30 and 120,471.20 is: 180,706.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,448.20 : 741,672.30 = 120,471.20 : x
  2. Step 2: Convert to fraction form
    494,448.20/741,672.30 = 120,471.20/x
  3. Step 3: Cross multiply
    494,448.20x = 741,672.30 × 120,471.20
  4. Step 4: Simplify right side
    494,448.20x = 89,350,151,987.76
  5. Step 5: Solve for x
    x = 89,350,151,987.76/494,448.20
  6. Step 6: Final answer
    x = 180,706.80

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Similar ratio
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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.