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Finding the Fourth Proportional to 576,287.44, 795,351.90 and 321,691.48

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Solution

The fourth proportional to 576,287.44, 795,351.90 and 321,691.48 is: 443,976.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,287.44 : 795,351.90 = 321,691.48 : x
  2. Step 2: Convert to fraction form
    576,287.44/795,351.90 = 321,691.48/x
  3. Step 3: Cross multiply
    576,287.44x = 795,351.90 × 321,691.48
  4. Step 4: Simplify right side
    576,287.44x = 255,857,929,831.81
  5. Step 5: Solve for x
    x = 255,857,929,831.81/576,287.44
  6. Step 6: Final answer
    x = 443,976.24

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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.