Home / 443,301.44-664,811.20-143,711.68

Finding the Fourth Proportional to 443,301.44, 664,811.20 and 143,711.68

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Solution

The fourth proportional to 443,301.44, 664,811.20 and 143,711.68 is: 215,521.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,301.44 : 664,811.20 = 143,711.68 : x
  2. Step 2: Convert to fraction form
    443,301.44/664,811.20 = 143,711.68/x
  3. Step 3: Cross multiply
    443,301.44x = 664,811.20 × 143,711.68
  4. Step 4: Simplify right side
    443,301.44x = 95,541,134,434.82
  5. Step 5: Solve for x
    x = 95,541,134,434.82/443,301.44
  6. Step 6: Final answer
    x = 215,521.82

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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.