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Finding the Fourth Proportional to 627,713.10, 941,569.65 and 206,934.30

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Solution

The fourth proportional to 627,713.10, 941,569.65 and 206,934.30 is: 310,401.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,713.10 : 941,569.65 = 206,934.30 : x
  2. Step 2: Convert to fraction form
    627,713.10/941,569.65 = 206,934.30/x
  3. Step 3: Cross multiply
    627,713.10x = 941,569.65 × 206,934.30
  4. Step 4: Simplify right side
    627,713.10x = 194,843,056,424.00
  5. Step 5: Solve for x
    x = 194,843,056,424.00/627,713.10
  6. Step 6: Final answer
    x = 310,401.45

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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.