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Finding the Fourth Proportional to 984.17, 1,476.59 and 496.85

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Solution

The fourth proportional to 984.17, 1,476.59 and 496.85 is: 745.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    984.17 : 1,476.59 = 496.85 : x
  2. Step 2: Convert to fraction form
    984.17/1,476.59 = 496.85/x
  3. Step 3: Cross multiply
    984.17x = 1,476.59 × 496.85
  4. Step 4: Simplify right side
    984.17x = 733,633.87
  5. Step 5: Solve for x
    x = 733,633.87/984.17
  6. Step 6: Final answer
    x = 745.44

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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.