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Finding the Fourth Proportional to 461,224.80, 691,837.20 and 367,912.80

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Solution

The fourth proportional to 461,224.80, 691,837.20 and 367,912.80 is: 551,869.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,224.80 : 691,837.20 = 367,912.80 : x
  2. Step 2: Convert to fraction form
    461,224.80/691,837.20 = 367,912.80/x
  3. Step 3: Cross multiply
    461,224.80x = 691,837.20 × 367,912.80
  4. Step 4: Simplify right side
    461,224.80x = 254,535,761,396.16
  5. Step 5: Solve for x
    x = 254,535,761,396.16/461,224.80
  6. Step 6: Final answer
    x = 551,869.20

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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.