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Finding the Fourth Proportional to 662,477.33, 993,716.31 and 213,198.15

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Solution

The fourth proportional to 662,477.33, 993,716.31 and 213,198.15 is: 319,797.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,477.33 : 993,716.31 = 213,198.15 : x
  2. Step 2: Convert to fraction form
    662,477.33/993,716.31 = 213,198.15/x
  3. Step 3: Cross multiply
    662,477.33x = 993,716.31 × 213,198.15
  4. Step 4: Simplify right side
    662,477.33x = 211,858,479,716.32
  5. Step 5: Solve for x
    x = 211,858,479,716.32/662,477.33
  6. Step 6: Final answer
    x = 319,797.33

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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.