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Finding the Fourth Proportional to 503,410.80, 755,116.20 and 204,034.80

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Solution

The fourth proportional to 503,410.80, 755,116.20 and 204,034.80 is: 306,052.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,410.80 : 755,116.20 = 204,034.80 : x
  2. Step 2: Convert to fraction form
    503,410.80/755,116.20 = 204,034.80/x
  3. Step 3: Cross multiply
    503,410.80x = 755,116.20 × 204,034.80
  4. Step 4: Simplify right side
    503,410.80x = 154,069,982,843.76
  5. Step 5: Solve for x
    x = 154,069,982,843.76/503,410.80
  6. Step 6: Final answer
    x = 306,052.20

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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.