Home / 627,746.20-941,619.30-206,999.80

Finding the Fourth Proportional to 627,746.20, 941,619.30 and 206,999.80

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Solution

The fourth proportional to 627,746.20, 941,619.30 and 206,999.80 is: 310,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,746.20 : 941,619.30 = 206,999.80 : x
  2. Step 2: Convert to fraction form
    627,746.20/941,619.30 = 206,999.80/x
  3. Step 3: Cross multiply
    627,746.20x = 941,619.30 × 206,999.80
  4. Step 4: Simplify right side
    627,746.20x = 194,915,006,776.14
  5. Step 5: Solve for x
    x = 194,915,006,776.14/627,746.20
  6. Step 6: Final answer
    x = 310,499.70

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Half scale
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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.