Home / 396,576.36-547,072.64-253,185.70

Finding the Fourth Proportional to 396,576.36, 547,072.64 and 253,185.70

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Solution

The fourth proportional to 396,576.36, 547,072.64 and 253,185.70 is: 349,266.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,576.36 : 547,072.64 = 253,185.70 : x
  2. Step 2: Convert to fraction form
    396,576.36/547,072.64 = 253,185.70/x
  3. Step 3: Cross multiply
    396,576.36x = 547,072.64 × 253,185.70
  4. Step 4: Simplify right side
    396,576.36x = 138,510,969,309.25
  5. Step 5: Solve for x
    x = 138,510,969,309.25/396,576.36
  6. Step 6: Final answer
    x = 349,266.83

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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.