Home / 443,229.99-664,747.79-127,618.35

Finding the Fourth Proportional to 443,229.99, 664,747.79 and 127,618.35

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Solution

The fourth proportional to 443,229.99, 664,747.79 and 127,618.35 is: 191,399.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,229.99 : 664,747.79 = 127,618.35 : x
  2. Step 2: Convert to fraction form
    443,229.99/664,747.79 = 127,618.35/x
  3. Step 3: Cross multiply
    443,229.99x = 664,747.79 × 127,618.35
  4. Step 4: Simplify right side
    443,229.99x = 84,834,015,487.85
  5. Step 5: Solve for x
    x = 84,834,015,487.85/443,229.99
  6. Step 6: Final answer
    x = 191,399.54

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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.