Home / 396,384.58-547,012.19-215,096.55

Finding the Fourth Proportional to 396,384.58, 547,012.19 and 215,096.55

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Solution

The fourth proportional to 396,384.58, 547,012.19 and 215,096.55 is: 296,834.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,384.58 : 547,012.19 = 215,096.55 : x
  2. Step 2: Convert to fraction form
    396,384.58/547,012.19 = 215,096.55/x
  3. Step 3: Cross multiply
    396,384.58x = 547,012.19 × 215,096.55
  4. Step 4: Simplify right side
    396,384.58x = 117,660,433,363.39
  5. Step 5: Solve for x
    x = 117,660,433,363.39/396,384.58
  6. Step 6: Final answer
    x = 296,834.03

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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.