Home / 426,186.26-639,383.48-141,876.26

Finding the Fourth Proportional to 426,186.26, 639,383.48 and 141,876.26

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Solution

The fourth proportional to 426,186.26, 639,383.48 and 141,876.26 is: 212,849.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,186.26 : 639,383.48 = 141,876.26 : x
  2. Step 2: Convert to fraction form
    426,186.26/639,383.48 = 141,876.26/x
  3. Step 3: Cross multiply
    426,186.26x = 639,383.48 × 141,876.26
  4. Step 4: Simplify right side
    426,186.26x = 90,713,336,138.80
  5. Step 5: Solve for x
    x = 90,713,336,138.80/426,186.26
  6. Step 6: Final answer
    x = 212,849.04

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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.