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Finding the Fourth Proportional to 572,522.20, 858,783.30 and 542,997.70

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Solution

The fourth proportional to 572,522.20, 858,783.30 and 542,997.70 is: 814,496.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,522.20 : 858,783.30 = 542,997.70 : x
  2. Step 2: Convert to fraction form
    572,522.20/858,783.30 = 542,997.70/x
  3. Step 3: Cross multiply
    572,522.20x = 858,783.30 × 542,997.70
  4. Step 4: Simplify right side
    572,522.20x = 466,317,356,698.41
  5. Step 5: Solve for x
    x = 466,317,356,698.41/572,522.20
  6. Step 6: Final answer
    x = 814,496.55

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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.