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Finding the Fourth Proportional to 662,477.52, 993,716.60 and 213,198.34

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Solution

The fourth proportional to 662,477.52, 993,716.60 and 213,198.34 is: 319,797.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,477.52 : 993,716.60 = 213,198.34 : x
  2. Step 2: Convert to fraction form
    662,477.52/993,716.60 = 213,198.34/x
  3. Step 3: Cross multiply
    662,477.52x = 993,716.60 × 213,198.34
  4. Step 4: Simplify right side
    662,477.52x = 211,858,726,000.16
  5. Step 5: Solve for x
    x = 211,858,726,000.16/662,477.52
  6. Step 6: Final answer
    x = 319,797.61

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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.