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Finding the Fourth Proportional to 491,163.21, 736,745.00 and 220,975.83

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Solution

The fourth proportional to 491,163.21, 736,745.00 and 220,975.83 is: 331,463.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,163.21 : 736,745.00 = 220,975.83 : x
  2. Step 2: Convert to fraction form
    491,163.21/736,745.00 = 220,975.83/x
  3. Step 3: Cross multiply
    491,163.21x = 736,745.00 × 220,975.83
  4. Step 4: Simplify right side
    491,163.21x = 162,802,836,768.47
  5. Step 5: Solve for x
    x = 162,802,836,768.47/491,163.21
  6. Step 6: Final answer
    x = 331,463.83

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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.