Home / 432,221.80-648,624.30-254,540.20

Finding the Fourth Proportional to 432,221.80, 648,624.30 and 254,540.20

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Solution

The fourth proportional to 432,221.80, 648,624.30 and 254,540.20 is: 381,982.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,221.80 : 648,624.30 = 254,540.20 : x
  2. Step 2: Convert to fraction form
    432,221.80/648,624.30 = 254,540.20/x
  3. Step 3: Cross multiply
    432,221.80x = 648,624.30 × 254,540.20
  4. Step 4: Simplify right side
    432,221.80x = 165,100,959,046.86
  5. Step 5: Solve for x
    x = 165,100,959,046.86/432,221.80
  6. Step 6: Final answer
    x = 381,982.03

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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.