Home / 411,667.60-617,546.82-131,120.32

Finding the Fourth Proportional to 411,667.60, 617,546.82 and 131,120.32

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Solution

The fourth proportional to 411,667.60, 617,546.82 and 131,120.32 is: 196,694.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,667.60 : 617,546.82 = 131,120.32 : x
  2. Step 2: Convert to fraction form
    411,667.60/617,546.82 = 131,120.32/x
  3. Step 3: Cross multiply
    411,667.60x = 617,546.82 × 131,120.32
  4. Step 4: Simplify right side
    411,667.60x = 80,972,936,653.38
  5. Step 5: Solve for x
    x = 80,972,936,653.38/411,667.60
  6. Step 6: Final answer
    x = 196,694.95

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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.