Home / 2,618,871.16-3,928,472.84-821,825.56

Finding the Fourth Proportional to 2,618,871.16, 3,928,472.84 and 821,825.56

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Solution

The fourth proportional to 2,618,871.16, 3,928,472.84 and 821,825.56 is: 1,232,790.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618,871.16 : 3,928,472.84 = 821,825.56 : x
  2. Step 2: Convert to fraction form
    2,618,871.16/3,928,472.84 = 821,825.56/x
  3. Step 3: Cross multiply
    2,618,871.16x = 3,928,472.84 × 821,825.56
  4. Step 4: Simplify right side
    2,618,871.16x = 3,228,519,391,677.79
  5. Step 5: Solve for x
    x = 3,228,519,391,677.79/2,618,871.16
  6. Step 6: Final answer
    x = 1,232,790.46

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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.