Home / 2,155,747.60-3,233,621.40-639,485.20

Finding the Fourth Proportional to 2,155,747.60, 3,233,621.40 and 639,485.20

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Solution

The fourth proportional to 2,155,747.60, 3,233,621.40 and 639,485.20 is: 959,227.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,747.60 : 3,233,621.40 = 639,485.20 : x
  2. Step 2: Convert to fraction form
    2,155,747.60/3,233,621.40 = 639,485.20/x
  3. Step 3: Cross multiply
    2,155,747.60x = 3,233,621.40 × 639,485.20
  4. Step 4: Simplify right side
    2,155,747.60x = 2,067,853,027,703.28
  5. Step 5: Solve for x
    x = 2,067,853,027,703.28/2,155,747.60
  6. Step 6: Final answer
    x = 959,227.80

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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.