Home / 627,864.20-941,796.30-312,936.20

Finding the Fourth Proportional to 627,864.20, 941,796.30 and 312,936.20

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Solution

The fourth proportional to 627,864.20, 941,796.30 and 312,936.20 is: 469,404.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,864.20 : 941,796.30 = 312,936.20 : x
  2. Step 2: Convert to fraction form
    627,864.20/941,796.30 = 312,936.20/x
  3. Step 3: Cross multiply
    627,864.20x = 941,796.30 × 312,936.20
  4. Step 4: Simplify right side
    627,864.20x = 294,722,155,296.06
  5. Step 5: Solve for x
    x = 294,722,155,296.06/627,864.20
  6. Step 6: Final answer
    x = 469,404.30

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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.