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Finding the Fourth Proportional to 321,395.73, 482,047.13 and 225,040.61

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Solution

The fourth proportional to 321,395.73, 482,047.13 and 225,040.61 is: 337,528.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,395.73 : 482,047.13 = 225,040.61 : x
  2. Step 2: Convert to fraction form
    321,395.73/482,047.13 = 225,040.61/x
  3. Step 3: Cross multiply
    321,395.73x = 482,047.13 × 225,040.61
  4. Step 4: Simplify right side
    321,395.73x = 108,480,176,648.51
  5. Step 5: Solve for x
    x = 108,480,176,648.51/321,395.73
  6. Step 6: Final answer
    x = 337,528.37

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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.