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Finding the Fourth Proportional to 382,866.13, 527,788.67 and 245,029.85

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Solution

The fourth proportional to 382,866.13, 527,788.67 and 245,029.85 is: 337,778.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,866.13 : 527,788.67 = 245,029.85 : x
  2. Step 2: Convert to fraction form
    382,866.13/527,788.67 = 245,029.85/x
  3. Step 3: Cross multiply
    382,866.13x = 527,788.67 × 245,029.85
  4. Step 4: Simplify right side
    382,866.13x = 129,323,978,641.80
  5. Step 5: Solve for x
    x = 129,323,978,641.80/382,866.13
  6. Step 6: Final answer
    x = 337,778.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.