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Finding the Fourth Proportional to 541,422.20, 812,133.30 and 275,701.70

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Solution

The fourth proportional to 541,422.20, 812,133.30 and 275,701.70 is: 413,552.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,422.20 : 812,133.30 = 275,701.70 : x
  2. Step 2: Convert to fraction form
    541,422.20/812,133.30 = 275,701.70/x
  3. Step 3: Cross multiply
    541,422.20x = 812,133.30 × 275,701.70
  4. Step 4: Simplify right side
    541,422.20x = 223,906,531,436.61
  5. Step 5: Solve for x
    x = 223,906,531,436.61/541,422.20
  6. Step 6: Final answer
    x = 413,552.55

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Half scale
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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.