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Finding the Fourth Proportional to 322,387.31, 444,764.58 and 194,841.47

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Solution

The fourth proportional to 322,387.31, 444,764.58 and 194,841.47 is: 268,802.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,387.31 : 444,764.58 = 194,841.47 : x
  2. Step 2: Convert to fraction form
    322,387.31/444,764.58 = 194,841.47/x
  3. Step 3: Cross multiply
    322,387.31x = 444,764.58 × 194,841.47
  4. Step 4: Simplify right side
    322,387.31x = 86,658,584,571.13
  5. Step 5: Solve for x
    x = 86,658,584,571.13/322,387.31
  6. Step 6: Final answer
    x = 268,802.72

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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.