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Finding the Fourth Proportional to 568,439.70, 851,919.13 and 231,086.31

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Solution

The fourth proportional to 568,439.70, 851,919.13 and 231,086.31 is: 346,328.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,439.70 : 851,919.13 = 231,086.31 : x
  2. Step 2: Convert to fraction form
    568,439.70/851,919.13 = 231,086.31/x
  3. Step 3: Cross multiply
    568,439.70x = 851,919.13 × 231,086.31
  4. Step 4: Simplify right side
    568,439.70x = 196,866,848,170.11
  5. Step 5: Solve for x
    x = 196,866,848,170.11/568,439.70
  6. Step 6: Final answer
    x = 346,328.46

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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.