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Finding the Fourth Proportional to 481,727.20, 664,663.44 and 277,840.48

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Solution

The fourth proportional to 481,727.20, 664,663.44 and 277,840.48 is: 383,350.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,727.20 : 664,663.44 = 277,840.48 : x
  2. Step 2: Convert to fraction form
    481,727.20/664,663.44 = 277,840.48/x
  3. Step 3: Cross multiply
    481,727.20x = 664,663.44 × 277,840.48
  4. Step 4: Simplify right side
    481,727.20x = 184,670,409,208.05
  5. Step 5: Solve for x
    x = 184,670,409,208.05/481,727.20
  6. Step 6: Final answer
    x = 383,350.60

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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.