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Finding the Fourth Proportional to 541,478.25, 812,217.38 and 147,494.25

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Solution

The fourth proportional to 541,478.25, 812,217.38 and 147,494.25 is: 221,241.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,478.25 : 812,217.38 = 147,494.25 : x
  2. Step 2: Convert to fraction form
    541,478.25/812,217.38 = 147,494.25/x
  3. Step 3: Cross multiply
    541,478.25x = 812,217.38 × 147,494.25
  4. Step 4: Simplify right side
    541,478.25x = 119,797,392,562.59
  5. Step 5: Solve for x
    x = 119,797,392,562.59/541,478.25
  6. Step 6: Final answer
    x = 221,241.38

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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.