Home / 2,118,524.85-3,177,759.93-521,101.78

Finding the Fourth Proportional to 2,118,524.85, 3,177,759.93 and 521,101.78

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Solution

The fourth proportional to 2,118,524.85, 3,177,759.93 and 521,101.78 is: 781,645.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,524.85 : 3,177,759.93 = 521,101.78 : x
  2. Step 2: Convert to fraction form
    2,118,524.85/3,177,759.93 = 521,101.78/x
  3. Step 3: Cross multiply
    2,118,524.85x = 3,177,759.93 × 521,101.78
  4. Step 4: Simplify right side
    2,118,524.85x = 1,655,936,355,935.68
  5. Step 5: Solve for x
    x = 1,655,936,355,935.68/2,118,524.85
  6. Step 6: Final answer
    x = 781,645.94

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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.