Home / 326,926.22-490,380.25-87,042.18

Finding the Fourth Proportional to 326,926.22, 490,380.25 and 87,042.18

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Solution

The fourth proportional to 326,926.22, 490,380.25 and 87,042.18 is: 130,560.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,926.22 : 490,380.25 = 87,042.18 : x
  2. Step 2: Convert to fraction form
    326,926.22/490,380.25 = 87,042.18/x
  3. Step 3: Cross multiply
    326,926.22x = 490,380.25 × 87,042.18
  4. Step 4: Simplify right side
    326,926.22x = 42,683,765,553.73
  5. Step 5: Solve for x
    x = 42,683,765,553.73/326,926.22
  6. Step 6: Final answer
    x = 130,560.85

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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.