Home / 321,119.39-443,145.24-177,876.29

Finding the Fourth Proportional to 321,119.39, 443,145.24 and 177,876.29

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Solution

The fourth proportional to 321,119.39, 443,145.24 and 177,876.29 is: 245,469.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,119.39 : 443,145.24 = 177,876.29 : x
  2. Step 2: Convert to fraction form
    321,119.39/443,145.24 = 177,876.29/x
  3. Step 3: Cross multiply
    321,119.39x = 443,145.24 × 177,876.29
  4. Step 4: Simplify right side
    321,119.39x = 78,825,029,006.63
  5. Step 5: Solve for x
    x = 78,825,029,006.63/321,119.39
  6. Step 6: Final answer
    x = 245,469.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.