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Finding the Fourth Proportional to 321,429.15, 482,224.05 and 226,843.95

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Solution

The fourth proportional to 321,429.15, 482,224.05 and 226,843.95 is: 340,322.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,429.15 : 482,224.05 = 226,843.95 : x
  2. Step 2: Convert to fraction form
    321,429.15/482,224.05 = 226,843.95/x
  3. Step 3: Cross multiply
    321,429.15x = 482,224.05 × 226,843.95
  4. Step 4: Simplify right side
    321,429.15x = 109,389,608,287.00
  5. Step 5: Solve for x
    x = 109,389,608,287.00/321,429.15
  6. Step 6: Final answer
    x = 340,322.61

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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.