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Finding the Fourth Proportional to 396,173.52, 546,714.84 and 214,882.20

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Solution

The fourth proportional to 396,173.52, 546,714.84 and 214,882.20 is: 296,534.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,173.52 : 546,714.84 = 214,882.20 : x
  2. Step 2: Convert to fraction form
    396,173.52/546,714.84 = 214,882.20/x
  3. Step 3: Cross multiply
    396,173.52x = 546,714.84 × 214,882.20
  4. Step 4: Simplify right side
    396,173.52x = 117,479,287,591.85
  5. Step 5: Solve for x
    x = 117,479,287,591.85/396,173.52
  6. Step 6: Final answer
    x = 296,534.93

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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.