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Finding the Fourth Proportional to 368,576.10, 508,791.95 and 247,787.44

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Solution

The fourth proportional to 368,576.10, 508,791.95 and 247,787.44 is: 342,052.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,576.10 : 508,791.95 = 247,787.44 : x
  2. Step 2: Convert to fraction form
    368,576.10/508,791.95 = 247,787.44/x
  3. Step 3: Cross multiply
    368,576.10x = 508,791.95 × 247,787.44
  4. Step 4: Simplify right side
    368,576.10x = 126,072,253,201.39
  5. Step 5: Solve for x
    x = 126,072,253,201.39/368,576.10
  6. Step 6: Final answer
    x = 342,052.17

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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.