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Finding the Fourth Proportional to 1,144.58, 1,716.86 and 733.30

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Solution

The fourth proportional to 1,144.58, 1,716.86 and 733.30 is: 1,099.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.58 : 1,716.86 = 733.30 : x
  2. Step 2: Convert to fraction form
    1,144.58/1,716.86 = 733.30/x
  3. Step 3: Cross multiply
    1,144.58x = 1,716.86 × 733.30
  4. Step 4: Simplify right side
    1,144.58x = 1,258,965.48
  5. Step 5: Solve for x
    x = 1,258,965.48/1,144.58
  6. Step 6: Final answer
    x = 1,099.94

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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.