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Finding the Fourth Proportional to 568,440.70, 851,920.64 and 231,087.30

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Solution

The fourth proportional to 568,440.70, 851,920.64 and 231,087.30 is: 346,329.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,440.70 : 851,920.64 = 231,087.30 : x
  2. Step 2: Convert to fraction form
    568,440.70/851,920.64 = 231,087.30/x
  3. Step 3: Cross multiply
    568,440.70x = 851,920.64 × 231,087.30
  4. Step 4: Simplify right side
    568,440.70x = 196,868,040,511.87
  5. Step 5: Solve for x
    x = 196,868,040,511.87/568,440.70
  6. Step 6: Final answer
    x = 346,329.95

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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.