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Finding the Fourth Proportional to 277,190.70, 415,008.45 and 269,414.70

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Solution

The fourth proportional to 277,190.70, 415,008.45 and 269,414.70 is: 403,366.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,190.70 : 415,008.45 = 269,414.70 : x
  2. Step 2: Convert to fraction form
    277,190.70/415,008.45 = 269,414.70/x
  3. Step 3: Cross multiply
    277,190.70x = 415,008.45 × 269,414.70
  4. Step 4: Simplify right side
    277,190.70x = 111,809,377,054.22
  5. Step 5: Solve for x
    x = 111,809,377,054.22/277,190.70
  6. Step 6: Final answer
    x = 403,366.26

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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.