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Finding the Fourth Proportional to 517,791.22, 714,183.79 and 345,622.38

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Solution

The fourth proportional to 517,791.22, 714,183.79 and 345,622.38 is: 476,713.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,791.22 : 714,183.79 = 345,622.38 : x
  2. Step 2: Convert to fraction form
    517,791.22/714,183.79 = 345,622.38/x
  3. Step 3: Cross multiply
    517,791.22x = 714,183.79 × 345,622.38
  4. Step 4: Simplify right side
    517,791.22x = 246,837,901,257.22
  5. Step 5: Solve for x
    x = 246,837,901,257.22/517,791.22
  6. Step 6: Final answer
    x = 476,713.18

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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.