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Finding the Fourth Proportional to 444,668.40, 667,099.80 and 220,136.40

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Solution

The fourth proportional to 444,668.40, 667,099.80 and 220,136.40 is: 330,252.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,668.40 : 667,099.80 = 220,136.40 : x
  2. Step 2: Convert to fraction form
    444,668.40/667,099.80 = 220,136.40/x
  3. Step 3: Cross multiply
    444,668.40x = 667,099.80 × 220,136.40
  4. Step 4: Simplify right side
    444,668.40x = 146,852,948,412.72
  5. Step 5: Solve for x
    x = 146,852,948,412.72/444,668.40
  6. Step 6: Final answer
    x = 330,252.72

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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.