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Finding the Fourth Proportional to 538,190.45, 806,301.11 and 254,115.62

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Solution

The fourth proportional to 538,190.45, 806,301.11 and 254,115.62 is: 380,708.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,190.45 : 806,301.11 = 254,115.62 : x
  2. Step 2: Convert to fraction form
    538,190.45/806,301.11 = 254,115.62/x
  3. Step 3: Cross multiply
    538,190.45x = 806,301.11 × 254,115.62
  4. Step 4: Simplify right side
    538,190.45x = 204,893,703,078.12
  5. Step 5: Solve for x
    x = 204,893,703,078.12/538,190.45
  6. Step 6: Final answer
    x = 380,708.55

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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.