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Finding the Fourth Proportional to 543,209.60, 814,490.40 and 332,998.40

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Solution

The fourth proportional to 543,209.60, 814,490.40 and 332,998.40 is: 499,298.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,209.60 : 814,490.40 = 332,998.40 : x
  2. Step 2: Convert to fraction form
    543,209.60/814,490.40 = 332,998.40/x
  3. Step 3: Cross multiply
    543,209.60x = 814,490.40 × 332,998.40
  4. Step 4: Simplify right side
    543,209.60x = 271,224,000,015.36
  5. Step 5: Solve for x
    x = 271,224,000,015.36/543,209.60
  6. Step 6: Final answer
    x = 499,298.98

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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.