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Finding the Fourth Proportional to 269,712.60, 404,682.30 and 144,907.80

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Solution

The fourth proportional to 269,712.60, 404,682.30 and 144,907.80 is: 217,422.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,712.60 : 404,682.30 = 144,907.80 : x
  2. Step 2: Convert to fraction form
    269,712.60/404,682.30 = 144,907.80/x
  3. Step 3: Cross multiply
    269,712.60x = 404,682.30 × 144,907.80
  4. Step 4: Simplify right side
    269,712.60x = 58,641,621,791.94
  5. Step 5: Solve for x
    x = 58,641,621,791.94/269,712.60
  6. Step 6: Final answer
    x = 217,422.63

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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.