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Finding the Fourth Proportional to 627,636.60, 941,454.90 and 206,857.80

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Solution

The fourth proportional to 627,636.60, 941,454.90 and 206,857.80 is: 310,286.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,636.60 : 941,454.90 = 206,857.80 : x
  2. Step 2: Convert to fraction form
    627,636.60/941,454.90 = 206,857.80/x
  3. Step 3: Cross multiply
    627,636.60x = 941,454.90 × 206,857.80
  4. Step 4: Simplify right side
    627,636.60x = 194,747,289,413.22
  5. Step 5: Solve for x
    x = 194,747,289,413.22/627,636.60
  6. Step 6: Final answer
    x = 310,286.70

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Similar ratio
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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.