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Finding the Fourth Proportional to 481,767.84, 664,910.37 and 277,778.86

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Solution

The fourth proportional to 481,767.84, 664,910.37 and 277,778.86 is: 383,375.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,767.84 : 664,910.37 = 277,778.86 : x
  2. Step 2: Convert to fraction form
    481,767.84/664,910.37 = 277,778.86/x
  3. Step 3: Cross multiply
    481,767.84x = 664,910.37 × 277,778.86
  4. Step 4: Simplify right side
    481,767.84x = 184,698,042,918.50
  5. Step 5: Solve for x
    x = 184,698,042,918.50/481,767.84
  6. Step 6: Final answer
    x = 383,375.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.