Home / 321,275.06-443,371.02-193,925.78

Finding the Fourth Proportional to 321,275.06, 443,371.02 and 193,925.78

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Solution

The fourth proportional to 321,275.06, 443,371.02 and 193,925.78 is: 267,624.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,275.06 : 443,371.02 = 193,925.78 : x
  2. Step 2: Convert to fraction form
    321,275.06/443,371.02 = 193,925.78/x
  3. Step 3: Cross multiply
    321,275.06x = 443,371.02 × 193,925.78
  4. Step 4: Simplify right side
    321,275.06x = 85,981,070,882.90
  5. Step 5: Solve for x
    x = 85,981,070,882.90/321,275.06
  6. Step 6: Final answer
    x = 267,624.48

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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.