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Finding the Fourth Proportional to 572,520.70, 858,781.05 and 542,996.20

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Solution

The fourth proportional to 572,520.70, 858,781.05 and 542,996.20 is: 814,494.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,520.70 : 858,781.05 = 542,996.20 : x
  2. Step 2: Convert to fraction form
    572,520.70/858,781.05 = 542,996.20/x
  3. Step 3: Cross multiply
    572,520.70x = 858,781.05 × 542,996.20
  4. Step 4: Simplify right side
    572,520.70x = 466,314,846,782.01
  5. Step 5: Solve for x
    x = 466,314,846,782.01/572,520.70
  6. Step 6: Final answer
    x = 814,494.30

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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.