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Finding the Fourth Proportional to 263,693.78, 396,663.12 and 239,031.23

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Solution

The fourth proportional to 263,693.78, 396,663.12 and 239,031.23 is: 359,564.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,693.78 : 396,663.12 = 239,031.23 : x
  2. Step 2: Convert to fraction form
    263,693.78/396,663.12 = 239,031.23/x
  3. Step 3: Cross multiply
    263,693.78x = 396,663.12 × 239,031.23
  4. Step 4: Simplify right side
    263,693.78x = 94,814,873,469.24
  5. Step 5: Solve for x
    x = 94,814,873,469.24/263,693.78
  6. Step 6: Final answer
    x = 359,564.32

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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.