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Finding the Fourth Proportional to 534,143.40, 801,215.10 and 335,077.80

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Solution

The fourth proportional to 534,143.40, 801,215.10 and 335,077.80 is: 502,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,143.40 : 801,215.10 = 335,077.80 : x
  2. Step 2: Convert to fraction form
    534,143.40/801,215.10 = 335,077.80/x
  3. Step 3: Cross multiply
    534,143.40x = 801,215.10 × 335,077.80
  4. Step 4: Simplify right side
    534,143.40x = 268,469,393,034.78
  5. Step 5: Solve for x
    x = 268,469,393,034.78/534,143.40
  6. Step 6: Final answer
    x = 502,616.70

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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.