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Finding the Fourth Proportional to 404,348.70, 606,960.45 and 254,757.90

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Solution

The fourth proportional to 404,348.70, 606,960.45 and 254,757.90 is: 382,412.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,348.70 : 606,960.45 = 254,757.90 : x
  2. Step 2: Convert to fraction form
    404,348.70/606,960.45 = 254,757.90/x
  3. Step 3: Cross multiply
    404,348.70x = 606,960.45 × 254,757.90
  4. Step 4: Simplify right side
    404,348.70x = 154,627,969,625.06
  5. Step 5: Solve for x
    x = 154,627,969,625.06/404,348.70
  6. Step 6: Final answer
    x = 382,412.43

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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.