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Finding the Fourth Proportional to 547,768.49, 821,661.87 and 248,251.62

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Solution

The fourth proportional to 547,768.49, 821,661.87 and 248,251.62 is: 372,381.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,768.49 : 821,661.87 = 248,251.62 : x
  2. Step 2: Convert to fraction form
    547,768.49/821,661.87 = 248,251.62/x
  3. Step 3: Cross multiply
    547,768.49x = 821,661.87 × 248,251.62
  4. Step 4: Simplify right side
    547,768.49x = 203,978,890,319.73
  5. Step 5: Solve for x
    x = 203,978,890,319.73/547,768.49
  6. Step 6: Final answer
    x = 372,381.57

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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.