Home / 396,820.56-547,616.34-215,536.05

Finding the Fourth Proportional to 396,820.56, 547,616.34 and 215,536.05

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Solution

The fourth proportional to 396,820.56, 547,616.34 and 215,536.05 is: 297,441.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,820.56 : 547,616.34 = 215,536.05 : x
  2. Step 2: Convert to fraction form
    396,820.56/547,616.34 = 215,536.05/x
  3. Step 3: Cross multiply
    396,820.56x = 547,616.34 × 215,536.05
  4. Step 4: Simplify right side
    396,820.56x = 118,031,062,839.06
  5. Step 5: Solve for x
    x = 118,031,062,839.06/396,820.56
  6. Step 6: Final answer
    x = 297,441.90

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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.