Home / 279,430.75-419,185.55-89,827.57

Finding the Fourth Proportional to 279,430.75, 419,185.55 and 89,827.57

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Solution

The fourth proportional to 279,430.75, 419,185.55 and 89,827.57 is: 134,754.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,430.75 : 419,185.55 = 89,827.57 : x
  2. Step 2: Convert to fraction form
    279,430.75/419,185.55 = 89,827.57/x
  3. Step 3: Cross multiply
    279,430.75x = 419,185.55 × 89,827.57
  4. Step 4: Simplify right side
    279,430.75x = 37,654,419,335.61
  5. Step 5: Solve for x
    x = 37,654,419,335.61/279,430.75
  6. Step 6: Final answer
    x = 134,754.03

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1.5x scale

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.