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Finding the Fourth Proportional to 624,177.20, 936,136.20 and 269,202.80

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Solution

The fourth proportional to 624,177.20, 936,136.20 and 269,202.80 is: 403,748.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,177.20 : 936,136.20 = 269,202.80 : x
  2. Step 2: Convert to fraction form
    624,177.20/936,136.20 = 269,202.80/x
  3. Step 3: Cross multiply
    624,177.20x = 936,136.20 × 269,202.80
  4. Step 4: Simplify right side
    624,177.20x = 252,010,486,221.36
  5. Step 5: Solve for x
    x = 252,010,486,221.36/624,177.20
  6. Step 6: Final answer
    x = 403,748.30

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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.