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Finding the Fourth Proportional to 627,908.92, 941,896.05 and 207,217.60

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Solution

The fourth proportional to 627,908.92, 941,896.05 and 207,217.60 is: 310,837.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,908.92 : 941,896.05 = 207,217.60 : x
  2. Step 2: Convert to fraction form
    627,908.92/941,896.05 = 207,217.60/x
  3. Step 3: Cross multiply
    627,908.92x = 941,896.05 × 207,217.60
  4. Step 4: Simplify right side
    627,908.92x = 195,177,438,930.48
  5. Step 5: Solve for x
    x = 195,177,438,930.48/627,908.92
  6. Step 6: Final answer
    x = 310,837.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.