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Finding the Fourth Proportional to 635,477.43, 876,974.13 and 349,003.71

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Solution

The fourth proportional to 635,477.43, 876,974.13 and 349,003.71 is: 481,633.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,477.43 : 876,974.13 = 349,003.71 : x
  2. Step 2: Convert to fraction form
    635,477.43/876,974.13 = 349,003.71/x
  3. Step 3: Cross multiply
    635,477.43x = 876,974.13 × 349,003.71
  4. Step 4: Simplify right side
    635,477.43x = 306,067,224,944.02
  5. Step 5: Solve for x
    x = 306,067,224,944.02/635,477.43
  6. Step 6: Final answer
    x = 481,633.51

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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.