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Finding the Fourth Proportional to 375,129.22, 517,309.74 and 344,010.27

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Solution

The fourth proportional to 375,129.22, 517,309.74 and 344,010.27 is: 474,396.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,129.22 : 517,309.74 = 344,010.27 : x
  2. Step 2: Convert to fraction form
    375,129.22/517,309.74 = 344,010.27/x
  3. Step 3: Cross multiply
    375,129.22x = 517,309.74 × 344,010.27
  4. Step 4: Simplify right side
    375,129.22x = 177,959,863,331.03
  5. Step 5: Solve for x
    x = 177,959,863,331.03/375,129.22
  6. Step 6: Final answer
    x = 474,396.16

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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.