Home / 653,236.23-979,853.99-203,995.61

Finding the Fourth Proportional to 653,236.23, 979,853.99 and 203,995.61

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Solution

The fourth proportional to 653,236.23, 979,853.99 and 203,995.61 is: 305,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,236.23 : 979,853.99 = 203,995.61 : x
  2. Step 2: Convert to fraction form
    653,236.23/979,853.99 = 203,995.61/x
  3. Step 3: Cross multiply
    653,236.23x = 979,853.99 × 203,995.61
  4. Step 4: Simplify right side
    653,236.23x = 199,885,906,481.74
  5. Step 5: Solve for x
    x = 199,885,906,481.74/653,236.23
  6. Step 6: Final answer
    x = 305,993.30

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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.