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Finding the Fourth Proportional to 444,945.81, 667,449.90 and 178,706.55

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Solution

The fourth proportional to 444,945.81, 667,449.90 and 178,706.55 is: 268,072.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,945.81 : 667,449.90 = 178,706.55 : x
  2. Step 2: Convert to fraction form
    444,945.81/667,449.90 = 178,706.55/x
  3. Step 3: Cross multiply
    444,945.81x = 667,449.90 × 178,706.55
  4. Step 4: Simplify right side
    444,945.81x = 119,277,668,926.85
  5. Step 5: Solve for x
    x = 119,277,668,926.85/444,945.81
  6. Step 6: Final answer
    x = 268,072.35

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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.