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Finding the Fourth Proportional to 3,979,832.82, 5,969,749.23 and 988,016.82

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Solution

The fourth proportional to 3,979,832.82, 5,969,749.23 and 988,016.82 is: 1,482,025.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979,832.82 : 5,969,749.23 = 988,016.82 : x
  2. Step 2: Convert to fraction form
    3,979,832.82/5,969,749.23 = 988,016.82/x
  3. Step 3: Cross multiply
    3,979,832.82x = 5,969,749.23 × 988,016.82
  4. Step 4: Simplify right side
    3,979,832.82x = 5,898,212,650,422.05
  5. Step 5: Solve for x
    x = 5,898,212,650,422.05/3,979,832.82
  6. Step 6: Final answer
    x = 1,482,025.23

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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.