Home / 439,286.20-657,617.10-261,701.80

Finding the Fourth Proportional to 439,286.20, 657,617.10 and 261,701.80

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Solution

The fourth proportional to 439,286.20, 657,617.10 and 261,701.80 is: 391,770.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,286.20 : 657,617.10 = 261,701.80 : x
  2. Step 2: Convert to fraction form
    439,286.20/657,617.10 = 261,701.80/x
  3. Step 3: Cross multiply
    439,286.20x = 657,617.10 × 261,701.80
  4. Step 4: Simplify right side
    439,286.20x = 172,099,578,780.78
  5. Step 5: Solve for x
    x = 172,099,578,780.78/439,286.20
  6. Step 6: Final answer
    x = 391,770.97

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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.