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Finding the Fourth Proportional to 716.24, 1,074.46 and 222.69

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Solution

The fourth proportional to 716.24, 1,074.46 and 222.69 is: 334.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.24 : 1,074.46 = 222.69 : x
  2. Step 2: Convert to fraction form
    716.24/1,074.46 = 222.69/x
  3. Step 3: Cross multiply
    716.24x = 1,074.46 × 222.69
  4. Step 4: Simplify right side
    716.24x = 239,271.50
  5. Step 5: Solve for x
    x = 239,271.50/716.24
  6. Step 6: Final answer
    x = 334.07

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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.