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Finding the Fourth Proportional to 538,321.44, 807,439.75 and 234,708.43

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Solution

The fourth proportional to 538,321.44, 807,439.75 and 234,708.43 is: 352,044.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,321.44 : 807,439.75 = 234,708.43 : x
  2. Step 2: Convert to fraction form
    538,321.44/807,439.75 = 234,708.43/x
  3. Step 3: Cross multiply
    538,321.44x = 807,439.75 × 234,708.43
  4. Step 4: Simplify right side
    538,321.44x = 189,512,916,042.09
  5. Step 5: Solve for x
    x = 189,512,916,042.09/538,321.44
  6. Step 6: Final answer
    x = 352,044.15

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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.