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Finding the Fourth Proportional to 481,571.72, 721,693.28 and 363,112.88

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Solution

The fourth proportional to 481,571.72, 721,693.28 and 363,112.88 is: 544,168.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,571.72 : 721,693.28 = 363,112.88 : x
  2. Step 2: Convert to fraction form
    481,571.72/721,693.28 = 363,112.88/x
  3. Step 3: Cross multiply
    481,571.72x = 721,693.28 × 363,112.88
  4. Step 4: Simplify right side
    481,571.72x = 262,056,125,377.45
  5. Step 5: Solve for x
    x = 262,056,125,377.45/481,571.72
  6. Step 6: Final answer
    x = 544,168.43

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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.