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Finding the Fourth Proportional to 269,732.20, 404,144.70 and 213,356.20

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Solution

The fourth proportional to 269,732.20, 404,144.70 and 213,356.20 is: 319,675.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,732.20 : 404,144.70 = 213,356.20 : x
  2. Step 2: Convert to fraction form
    269,732.20/404,144.70 = 213,356.20/x
  3. Step 3: Cross multiply
    269,732.20x = 404,144.70 × 213,356.20
  4. Step 4: Simplify right side
    269,732.20x = 86,226,777,442.14
  5. Step 5: Solve for x
    x = 86,226,777,442.14/269,732.20
  6. Step 6: Final answer
    x = 319,675.51

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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.