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Finding the Fourth Proportional to 269,845.20, 404,767.80 and 262,069.20

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Solution

The fourth proportional to 269,845.20, 404,767.80 and 262,069.20 is: 393,103.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,845.20 : 404,767.80 = 262,069.20 : x
  2. Step 2: Convert to fraction form
    269,845.20/404,767.80 = 262,069.20/x
  3. Step 3: Cross multiply
    269,845.20x = 404,767.80 × 262,069.20
  4. Step 4: Simplify right side
    269,845.20x = 106,077,173,531.76
  5. Step 5: Solve for x
    x = 106,077,173,531.76/269,845.20
  6. Step 6: Final answer
    x = 393,103.80

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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.