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Finding the Fourth Proportional to 627,636.30, 941,454.45 and 206,810.70

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Solution

The fourth proportional to 627,636.30, 941,454.45 and 206,810.70 is: 310,216.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,636.30 : 941,454.45 = 206,810.70 : x
  2. Step 2: Convert to fraction form
    627,636.30/941,454.45 = 206,810.70/x
  3. Step 3: Cross multiply
    627,636.30x = 941,454.45 × 206,810.70
  4. Step 4: Simplify right side
    627,636.30x = 194,702,853,822.62
  5. Step 5: Solve for x
    x = 194,702,853,822.62/627,636.30
  6. Step 6: Final answer
    x = 310,216.05

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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.