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Finding the Fourth Proportional to 474,180.21, 711,269.51 and 221,375.97

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Solution

The fourth proportional to 474,180.21, 711,269.51 and 221,375.97 is: 332,063.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,180.21 : 711,269.51 = 221,375.97 : x
  2. Step 2: Convert to fraction form
    474,180.21/711,269.51 = 221,375.97/x
  3. Step 3: Cross multiply
    474,180.21x = 711,269.51 × 221,375.97
  4. Step 4: Simplify right side
    474,180.21x = 157,457,976,600.80
  5. Step 5: Solve for x
    x = 157,457,976,600.80/474,180.21
  6. Step 6: Final answer
    x = 332,063.58

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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.