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Finding the Fourth Proportional to 1,144.22, 1,716.44 and 322.52

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Solution

The fourth proportional to 1,144.22, 1,716.44 and 322.52 is: 483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.22 : 1,716.44 = 322.52 : x
  2. Step 2: Convert to fraction form
    1,144.22/1,716.44 = 322.52/x
  3. Step 3: Cross multiply
    1,144.22x = 1,716.44 × 322.52
  4. Step 4: Simplify right side
    1,144.22x = 553,576.03
  5. Step 5: Solve for x
    x = 553,576.03/1,144.22
  6. Step 6: Final answer
    x = 483.80

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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.