Home / 2,618,872.25-3,928,474.40-821,826.59

Finding the Fourth Proportional to 2,618,872.25, 3,928,474.40 and 821,826.59

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Solution

The fourth proportional to 2,618,872.25, 3,928,474.40 and 821,826.59 is: 1,232,791.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618,872.25 : 3,928,474.40 = 821,826.59 : x
  2. Step 2: Convert to fraction form
    2,618,872.25/3,928,474.40 = 821,826.59/x
  3. Step 3: Cross multiply
    2,618,872.25x = 3,928,474.40 × 821,826.59
  4. Step 4: Simplify right side
    2,618,872.25x = 3,228,524,696,302.79
  5. Step 5: Solve for x
    x = 3,228,524,696,302.79/2,618,872.25
  6. Step 6: Final answer
    x = 1,232,791.98

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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.