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Finding the Fourth Proportional to 543,877.60, 815,816.40 and 532,213.60

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Solution

The fourth proportional to 543,877.60, 815,816.40 and 532,213.60 is: 798,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,877.60 : 815,816.40 = 532,213.60 : x
  2. Step 2: Convert to fraction form
    543,877.60/815,816.40 = 532,213.60/x
  3. Step 3: Cross multiply
    543,877.60x = 815,816.40 × 532,213.60
  4. Step 4: Simplify right side
    543,877.60x = 434,188,583,183.04
  5. Step 5: Solve for x
    x = 434,188,583,183.04/543,877.60
  6. Step 6: Final answer
    x = 798,320.40

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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.