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Finding the Fourth Proportional to 543,181.06, 749,727.62 and 371,168.56

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Solution

The fourth proportional to 543,181.06, 749,727.62 and 371,168.56 is: 512,306.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,181.06 : 749,727.62 = 371,168.56 : x
  2. Step 2: Convert to fraction form
    543,181.06/749,727.62 = 371,168.56/x
  3. Step 3: Cross multiply
    543,181.06x = 749,727.62 × 371,168.56
  4. Step 4: Simplify right side
    543,181.06x = 278,275,321,107.63
  5. Step 5: Solve for x
    x = 278,275,321,107.63/543,181.06
  6. Step 6: Final answer
    x = 512,306.75

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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.