Home / 396,628.51-547,344.30-215,336.83

Finding the Fourth Proportional to 396,628.51, 547,344.30 and 215,336.83

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Solution

The fourth proportional to 396,628.51, 547,344.30 and 215,336.83 is: 297,163.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,628.51 : 547,344.30 = 215,336.83 : x
  2. Step 2: Convert to fraction form
    396,628.51/547,344.30 = 215,336.83/x
  3. Step 3: Cross multiply
    396,628.51x = 547,344.30 × 215,336.83
  4. Step 4: Simplify right side
    396,628.51x = 117,863,386,480.57
  5. Step 5: Solve for x
    x = 117,863,386,480.57/396,628.51
  6. Step 6: Final answer
    x = 297,163.17

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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.