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Finding the Fourth Proportional to 2,144.44, 3,216.30 and 974.08

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Solution

The fourth proportional to 2,144.44, 3,216.30 and 974.08 is: 1,460.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.44 : 3,216.30 = 974.08 : x
  2. Step 2: Convert to fraction form
    2,144.44/3,216.30 = 974.08/x
  3. Step 3: Cross multiply
    2,144.44x = 3,216.30 × 974.08
  4. Step 4: Simplify right side
    2,144.44x = 3,132,933.50
  5. Step 5: Solve for x
    x = 3,132,933.50/2,144.44
  6. Step 6: Final answer
    x = 1,460.96

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1.5x scale

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.