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Finding the Fourth Proportional to 404,144.22, 557,696.10 and 251,178.48

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Solution

The fourth proportional to 404,144.22, 557,696.10 and 251,178.48 is: 346,612.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,144.22 : 557,696.10 = 251,178.48 : x
  2. Step 2: Convert to fraction form
    404,144.22/557,696.10 = 251,178.48/x
  3. Step 3: Cross multiply
    404,144.22x = 557,696.10 × 251,178.48
  4. Step 4: Simplify right side
    404,144.22x = 140,081,258,699.93
  5. Step 5: Solve for x
    x = 140,081,258,699.93/404,144.22
  6. Step 6: Final answer
    x = 346,612.06

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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.