Home / 638,249.41-957,444.17-318,481.76

Finding the Fourth Proportional to 638,249.41, 957,444.17 and 318,481.76

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Solution

The fourth proportional to 638,249.41, 957,444.17 and 318,481.76 is: 477,757.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,249.41 : 957,444.17 = 318,481.76 : x
  2. Step 2: Convert to fraction form
    638,249.41/957,444.17 = 318,481.76/x
  3. Step 3: Cross multiply
    638,249.41x = 957,444.17 × 318,481.76
  4. Step 4: Simplify right side
    638,249.41x = 304,928,499,778.92
  5. Step 5: Solve for x
    x = 304,928,499,778.92/638,249.41
  6. Step 6: Final answer
    x = 477,757.59

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1.5x scale

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.