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Finding the Fourth Proportional to 624,167.20, 936,121.20 and 269,192.80

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Solution

The fourth proportional to 624,167.20, 936,121.20 and 269,192.80 is: 403,733.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,167.20 : 936,121.20 = 269,192.80 : x
  2. Step 2: Convert to fraction form
    624,167.20/936,121.20 = 269,192.80/x
  3. Step 3: Cross multiply
    624,167.20x = 936,121.20 × 269,192.80
  4. Step 4: Simplify right side
    624,167.20x = 251,997,086,967.36
  5. Step 5: Solve for x
    x = 251,997,086,967.36/624,167.20
  6. Step 6: Final answer
    x = 403,733.31

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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.