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Finding the Fourth Proportional to 572,520.60, 858,780.90 and 362,395.80

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Solution

The fourth proportional to 572,520.60, 858,780.90 and 362,395.80 is: 543,593.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,520.60 : 858,780.90 = 362,395.80 : x
  2. Step 2: Convert to fraction form
    572,520.60/858,780.90 = 362,395.80/x
  3. Step 3: Cross multiply
    572,520.60x = 858,780.90 × 362,395.80
  4. Step 4: Simplify right side
    572,520.60x = 311,218,591,280.22
  5. Step 5: Solve for x
    x = 311,218,591,280.22/572,520.60
  6. Step 6: Final answer
    x = 543,593.70

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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.