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Finding the Fourth Proportional to 694.14, 1,040.94 and 364.98

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Solution

The fourth proportional to 694.14, 1,040.94 and 364.98 is: 547.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.14 : 1,040.94 = 364.98 : x
  2. Step 2: Convert to fraction form
    694.14/1,040.94 = 364.98/x
  3. Step 3: Cross multiply
    694.14x = 1,040.94 × 364.98
  4. Step 4: Simplify right side
    694.14x = 379,922.28
  5. Step 5: Solve for x
    x = 379,922.28/694.14
  6. Step 6: Final answer
    x = 547.33

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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.