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Finding the Fourth Proportional to 482,083.12, 722,832.99 and 215,794

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Solution

The fourth proportional to 482,083.12, 722,832.99 and 215,794 is: 323,560.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,083.12 : 722,832.99 = 215,794 : x
  2. Step 2: Convert to fraction form
    482,083.12/722,832.99 = 215,794/x
  3. Step 3: Cross multiply
    482,083.12x = 722,832.99 × 215,794
  4. Step 4: Simplify right side
    482,083.12x = 155,983,022,244.06
  5. Step 5: Solve for x
    x = 155,983,022,244.06/482,083.12
  6. Step 6: Final answer
    x = 323,560.43

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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.