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Finding the Fourth Proportional to 541,446.75, 812,170.13 and 147,462.75

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Solution

The fourth proportional to 541,446.75, 812,170.13 and 147,462.75 is: 221,194.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,446.75 : 812,170.13 = 147,462.75 : x
  2. Step 2: Convert to fraction form
    541,446.75/812,170.13 = 147,462.75/x
  3. Step 3: Cross multiply
    541,446.75x = 812,170.13 × 147,462.75
  4. Step 4: Simplify right side
    541,446.75x = 119,764,840,100.34
  5. Step 5: Solve for x
    x = 119,764,840,100.34/541,446.75
  6. Step 6: Final answer
    x = 221,194.13

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Double scale
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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.