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Finding the Fourth Proportional to 1,144.06, 1,716.33 and 374.50

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Solution

The fourth proportional to 1,144.06, 1,716.33 and 374.50 is: 561.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.06 : 1,716.33 = 374.50 : x
  2. Step 2: Convert to fraction form
    1,144.06/1,716.33 = 374.50/x
  3. Step 3: Cross multiply
    1,144.06x = 1,716.33 × 374.50
  4. Step 4: Simplify right side
    1,144.06x = 642,765.59
  5. Step 5: Solve for x
    x = 642,765.59/1,144.06
  6. Step 6: Final answer
    x = 561.83

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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.