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Finding the Fourth Proportional to 662,519.62, 993,937.92 and 213,282.46

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Solution

The fourth proportional to 662,519.62, 993,937.92 and 213,282.46 is: 319,974.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,519.62 : 993,937.92 = 213,282.46 : x
  2. Step 2: Convert to fraction form
    662,519.62/993,937.92 = 213,282.46/x
  3. Step 3: Cross multiply
    662,519.62x = 993,937.92 × 213,282.46
  4. Step 4: Simplify right side
    662,519.62x = 211,989,524,664.88
  5. Step 5: Solve for x
    x = 211,989,524,664.88/662,519.62
  6. Step 6: Final answer
    x = 319,974.71

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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.