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Finding the Fourth Proportional to 404,172.48, 557,791.24 and 222,919.86

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Solution

The fourth proportional to 404,172.48, 557,791.24 and 222,919.86 is: 307,647.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,172.48 : 557,791.24 = 222,919.86 : x
  2. Step 2: Convert to fraction form
    404,172.48/557,791.24 = 222,919.86/x
  3. Step 3: Cross multiply
    404,172.48x = 557,791.24 × 222,919.86
  4. Step 4: Simplify right side
    404,172.48x = 124,342,745,130.03
  5. Step 5: Solve for x
    x = 124,342,745,130.03/404,172.48
  6. Step 6: Final answer
    x = 307,647.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.