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Finding the Fourth Proportional to 469,171.62, 703,212.96 and 215,920.37

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Solution

The fourth proportional to 469,171.62, 703,212.96 and 215,920.37 is: 323,629.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,171.62 : 703,212.96 = 215,920.37 : x
  2. Step 2: Convert to fraction form
    469,171.62/703,212.96 = 215,920.37/x
  3. Step 3: Cross multiply
    469,171.62x = 703,212.96 × 215,920.37
  4. Step 4: Simplify right side
    469,171.62x = 151,837,998,995.93
  5. Step 5: Solve for x
    x = 151,837,998,995.93/469,171.62
  6. Step 6: Final answer
    x = 323,629.97

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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.