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Finding the Fourth Proportional to 627,815.60, 941,377.80 and 206,874.80

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Solution

The fourth proportional to 627,815.60, 941,377.80 and 206,874.80 is: 310,198.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,815.60 : 941,377.80 = 206,874.80 : x
  2. Step 2: Convert to fraction form
    627,815.60/941,377.80 = 206,874.80/x
  3. Step 3: Cross multiply
    627,815.60x = 941,377.80 × 206,874.80
  4. Step 4: Simplify right side
    627,815.60x = 194,747,344,099.44
  5. Step 5: Solve for x
    x = 194,747,344,099.44/627,815.60
  6. Step 6: Final answer
    x = 310,198.32

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1.5x scale

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.