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Finding the Fourth Proportional to 2,922.89, 4,382.92 and 974.44

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Solution

The fourth proportional to 2,922.89, 4,382.92 and 974.44 is: 1,461.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.89 : 4,382.92 = 974.44 : x
  2. Step 2: Convert to fraction form
    2,922.89/4,382.92 = 974.44/x
  3. Step 3: Cross multiply
    2,922.89x = 4,382.92 × 974.44
  4. Step 4: Simplify right side
    2,922.89x = 4,270,879.17
  5. Step 5: Solve for x
    x = 4,270,879.17/2,922.89
  6. Step 6: Final answer
    x = 1,461.18

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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.