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Finding the Fourth Proportional to 481,580.72, 721,706.78 and 363,121.88

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Solution

The fourth proportional to 481,580.72, 721,706.78 and 363,121.88 is: 544,181.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,580.72 : 721,706.78 = 363,121.88 : x
  2. Step 2: Convert to fraction form
    481,580.72/721,706.78 = 363,121.88/x
  3. Step 3: Cross multiply
    481,580.72x = 721,706.78 × 363,121.88
  4. Step 4: Simplify right side
    481,580.72x = 262,067,522,762.35
  5. Step 5: Solve for x
    x = 262,067,522,762.35/481,580.72
  6. Step 6: Final answer
    x = 544,181.92

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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.