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Finding the Fourth Proportional to 321,550.76, 482,531.34 and 226,722.44

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Solution

The fourth proportional to 321,550.76, 482,531.34 and 226,722.44 is: 340,228.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,550.76 : 482,531.34 = 226,722.44 : x
  2. Step 2: Convert to fraction form
    321,550.76/482,531.34 = 226,722.44/x
  3. Step 3: Cross multiply
    321,550.76x = 482,531.34 × 226,722.44
  4. Step 4: Simplify right side
    321,550.76x = 109,400,682,781.27
  5. Step 5: Solve for x
    x = 109,400,682,781.27/321,550.76
  6. Step 6: Final answer
    x = 340,228.34

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1.5x scale

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.