Home / 396,447.38-547,551.48-261,086.36

Finding the Fourth Proportional to 396,447.38, 547,551.48 and 261,086.36

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Solution

The fourth proportional to 396,447.38, 547,551.48 and 261,086.36 is: 360,598.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,447.38 : 547,551.48 = 261,086.36 : x
  2. Step 2: Convert to fraction form
    396,447.38/547,551.48 = 261,086.36/x
  3. Step 3: Cross multiply
    396,447.38x = 547,551.48 × 261,086.36
  4. Step 4: Simplify right side
    396,447.38x = 142,958,222,825.81
  5. Step 5: Solve for x
    x = 142,958,222,825.81/396,447.38
  6. Step 6: Final answer
    x = 360,598.23

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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.