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Finding the Fourth Proportional to 547,744.65, 755,882.49 and 306,068.85

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Solution

The fourth proportional to 547,744.65, 755,882.49 and 306,068.85 is: 422,372.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,744.65 : 755,882.49 = 306,068.85 : x
  2. Step 2: Convert to fraction form
    547,744.65/755,882.49 = 306,068.85/x
  3. Step 3: Cross multiply
    547,744.65x = 755,882.49 × 306,068.85
  4. Step 4: Simplify right side
    547,744.65x = 231,352,084,449.44
  5. Step 5: Solve for x
    x = 231,352,084,449.44/547,744.65
  6. Step 6: Final answer
    x = 422,372.15

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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.