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Finding the Fourth Proportional to 543,121.20, 814,681.80 and 332,877.60

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Solution

The fourth proportional to 543,121.20, 814,681.80 and 332,877.60 is: 499,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,121.20 : 814,681.80 = 332,877.60 : x
  2. Step 2: Convert to fraction form
    543,121.20/814,681.80 = 332,877.60/x
  3. Step 3: Cross multiply
    543,121.20x = 814,681.80 × 332,877.60
  4. Step 4: Simplify right side
    543,121.20x = 271,189,322,347.68
  5. Step 5: Solve for x
    x = 271,189,322,347.68/543,121.20
  6. Step 6: Final answer
    x = 499,316.40

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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.