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Finding the Fourth Proportional to 3,826,352.25, 5,739,858.84 and 986,440.41

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Solution

The fourth proportional to 3,826,352.25, 5,739,858.84 and 986,440.41 is: 1,479,745.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,826,352.25 : 5,739,858.84 = 986,440.41 : x
  2. Step 2: Convert to fraction form
    3,826,352.25/5,739,858.84 = 986,440.41/x
  3. Step 3: Cross multiply
    3,826,352.25x = 5,739,858.84 × 986,440.41
  4. Step 4: Simplify right side
    3,826,352.25x = 5,662,028,707,471.73
  5. Step 5: Solve for x
    x = 5,662,028,707,471.73/3,826,352.25
  6. Step 6: Final answer
    x = 1,479,745.81

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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.