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Finding the Fourth Proportional to 633,427.12, 873,912.22 and 361,299.16

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Solution

The fourth proportional to 633,427.12, 873,912.22 and 361,299.16 is: 498,468.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,427.12 : 873,912.22 = 361,299.16 : x
  2. Step 2: Convert to fraction form
    633,427.12/873,912.22 = 361,299.16/x
  3. Step 3: Cross multiply
    633,427.12x = 873,912.22 × 361,299.16
  4. Step 4: Simplify right side
    633,427.12x = 315,743,751,188.88
  5. Step 5: Solve for x
    x = 315,743,751,188.88/633,427.12
  6. Step 6: Final answer
    x = 498,468.95

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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.