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Finding the Fourth Proportional to 396,900.41, 547,732.41 and 215,612.30

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Solution

The fourth proportional to 396,900.41, 547,732.41 and 215,612.30 is: 297,550.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,900.41 : 547,732.41 = 215,612.30 : x
  2. Step 2: Convert to fraction form
    396,900.41/547,732.41 = 215,612.30/x
  3. Step 3: Cross multiply
    396,900.41x = 547,732.41 × 215,612.30
  4. Step 4: Simplify right side
    396,900.41x = 118,097,844,704.64
  5. Step 5: Solve for x
    x = 118,097,844,704.64/396,900.41
  6. Step 6: Final answer
    x = 297,550.32

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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.