Home / 411,986.10-617,979.15-162,635.70

Finding the Fourth Proportional to 411,986.10, 617,979.15 and 162,635.70

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Solution

The fourth proportional to 411,986.10, 617,979.15 and 162,635.70 is: 243,953.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,986.10 : 617,979.15 = 162,635.70 : x
  2. Step 2: Convert to fraction form
    411,986.10/617,979.15 = 162,635.70/x
  3. Step 3: Cross multiply
    411,986.10x = 617,979.15 × 162,635.70
  4. Step 4: Simplify right side
    411,986.10x = 100,505,471,645.66
  5. Step 5: Solve for x
    x = 100,505,471,645.66/411,986.10
  6. Step 6: Final answer
    x = 243,953.55

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Similar ratio
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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.