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Finding the Fourth Proportional to 543,202.20, 814,803.30 and 341,123.40

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Solution

The fourth proportional to 543,202.20, 814,803.30 and 341,123.40 is: 511,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,202.20 : 814,803.30 = 341,123.40 : x
  2. Step 2: Convert to fraction form
    543,202.20/814,803.30 = 341,123.40/x
  3. Step 3: Cross multiply
    543,202.20x = 814,803.30 × 341,123.40
  4. Step 4: Simplify right side
    543,202.20x = 277,948,472,027.22
  5. Step 5: Solve for x
    x = 277,948,472,027.22/543,202.20
  6. Step 6: Final answer
    x = 511,685.10

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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.