Home / 443,396.76-664,943.94-127,768.92

Finding the Fourth Proportional to 443,396.76, 664,943.94 and 127,768.92

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Solution

The fourth proportional to 443,396.76, 664,943.94 and 127,768.92 is: 191,609.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,396.76 : 664,943.94 = 127,768.92 : x
  2. Step 2: Convert to fraction form
    443,396.76/664,943.94 = 127,768.92/x
  3. Step 3: Cross multiply
    443,396.76x = 664,943.94 × 127,768.92
  4. Step 4: Simplify right side
    443,396.76x = 84,959,169,074.34
  5. Step 5: Solve for x
    x = 84,959,169,074.34/443,396.76
  6. Step 6: Final answer
    x = 191,609.81

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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.