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Finding the Fourth Proportional to 627,836.60, 941,711.70 and 201,366.20

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Solution

The fourth proportional to 627,836.60, 941,711.70 and 201,366.20 is: 302,035.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,836.60 : 941,711.70 = 201,366.20 : x
  2. Step 2: Convert to fraction form
    627,836.60/941,711.70 = 201,366.20/x
  3. Step 3: Cross multiply
    627,836.60x = 941,711.70 × 201,366.20
  4. Step 4: Simplify right side
    627,836.60x = 189,628,906,524.54
  5. Step 5: Solve for x
    x = 189,628,906,524.54/627,836.60
  6. Step 6: Final answer
    x = 302,035.44

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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.