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Finding the Fourth Proportional to 663,171.40, 994,514.10 and 214,010.20

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Solution

The fourth proportional to 663,171.40, 994,514.10 and 214,010.20 is: 320,936.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,171.40 : 994,514.10 = 214,010.20 : x
  2. Step 2: Convert to fraction form
    663,171.40/994,514.10 = 214,010.20/x
  3. Step 3: Cross multiply
    663,171.40x = 994,514.10 × 214,010.20
  4. Step 4: Simplify right side
    663,171.40x = 212,836,161,443.82
  5. Step 5: Solve for x
    x = 212,836,161,443.82/663,171.40
  6. Step 6: Final answer
    x = 320,936.88

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.