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Finding the Fourth Proportional to 483,400.90, 724,882.65 and 183,781.90

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Solution

The fourth proportional to 483,400.90, 724,882.65 and 183,781.90 is: 275,589.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,400.90 : 724,882.65 = 183,781.90 : x
  2. Step 2: Convert to fraction form
    483,400.90/724,882.65 = 183,781.90/x
  3. Step 3: Cross multiply
    483,400.90x = 724,882.65 × 183,781.90
  4. Step 4: Simplify right side
    483,400.90x = 133,220,310,694.04
  5. Step 5: Solve for x
    x = 133,220,310,694.04/483,400.90
  6. Step 6: Final answer
    x = 275,589.70

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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.