Home / 396,579.68-547,222.22-226,781

Finding the Fourth Proportional to 396,579.68, 547,222.22 and 226,781

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Solution

The fourth proportional to 396,579.68, 547,222.22 and 226,781 is: 312,924.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,579.68 : 547,222.22 = 226,781 : x
  2. Step 2: Convert to fraction form
    396,579.68/547,222.22 = 226,781/x
  3. Step 3: Cross multiply
    396,579.68x = 547,222.22 × 226,781
  4. Step 4: Simplify right side
    396,579.68x = 124,099,601,139.92
  5. Step 5: Solve for x
    x = 124,099,601,139.92/396,579.68
  6. Step 6: Final answer
    x = 312,924.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.