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Finding the Fourth Proportional to 543,431.80, 815,147.70 and 277,711.30

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Solution

The fourth proportional to 543,431.80, 815,147.70 and 277,711.30 is: 416,566.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,431.80 : 815,147.70 = 277,711.30 : x
  2. Step 2: Convert to fraction form
    543,431.80/815,147.70 = 277,711.30/x
  3. Step 3: Cross multiply
    543,431.80x = 815,147.70 × 277,711.30
  4. Step 4: Simplify right side
    543,431.80x = 226,375,727,459.01
  5. Step 5: Solve for x
    x = 226,375,727,459.01/543,431.80
  6. Step 6: Final answer
    x = 416,566.95

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Similar ratio
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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.