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Finding the Fourth Proportional to 627,660.10, 941,490.15 and 206,881.30

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Solution

The fourth proportional to 627,660.10, 941,490.15 and 206,881.30 is: 310,321.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,660.10 : 941,490.15 = 206,881.30 : x
  2. Step 2: Convert to fraction form
    627,660.10/941,490.15 = 206,881.30/x
  3. Step 3: Cross multiply
    627,660.10x = 941,490.15 × 206,881.30
  4. Step 4: Simplify right side
    627,660.10x = 194,776,706,169.20
  5. Step 5: Solve for x
    x = 194,776,706,169.20/627,660.10
  6. Step 6: Final answer
    x = 310,321.95

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Double scale
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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.