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Finding the Fourth Proportional to 371,743.20, 557,614.80 and 267,544.80

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Solution

The fourth proportional to 371,743.20, 557,614.80 and 267,544.80 is: 401,317.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,743.20 : 557,614.80 = 267,544.80 : x
  2. Step 2: Convert to fraction form
    371,743.20/557,614.80 = 267,544.80/x
  3. Step 3: Cross multiply
    371,743.20x = 557,614.80 × 267,544.80
  4. Step 4: Simplify right side
    371,743.20x = 149,186,940,143.04
  5. Step 5: Solve for x
    x = 149,186,940,143.04/371,743.20
  6. Step 6: Final answer
    x = 401,317.20

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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.