Home / 396,330.62-547,033.55-243,405.27

Finding the Fourth Proportional to 396,330.62, 547,033.55 and 243,405.27

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Solution

The fourth proportional to 396,330.62, 547,033.55 and 243,405.27 is: 335,959.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,330.62 : 547,033.55 = 243,405.27 : x
  2. Step 2: Convert to fraction form
    396,330.62/547,033.55 = 243,405.27/x
  3. Step 3: Cross multiply
    396,330.62x = 547,033.55 × 243,405.27
  4. Step 4: Simplify right side
    396,330.62x = 133,150,847,719.78
  5. Step 5: Solve for x
    x = 133,150,847,719.78/396,330.62
  6. Step 6: Final answer
    x = 335,959.03

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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.