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Finding the Fourth Proportional to 269,553.20, 403,552.20 and 261,777.20

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Solution

The fourth proportional to 269,553.20, 403,552.20 and 261,777.20 is: 391,910.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,553.20 : 403,552.20 = 261,777.20 : x
  2. Step 2: Convert to fraction form
    269,553.20/403,552.20 = 261,777.20/x
  3. Step 3: Cross multiply
    269,553.20x = 403,552.20 × 261,777.20
  4. Step 4: Simplify right side
    269,553.20x = 105,640,764,969.84
  5. Step 5: Solve for x
    x = 105,640,764,969.84/269,553.20
  6. Step 6: Final answer
    x = 391,910.63

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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.