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Finding the Fourth Proportional to 2,262.16, 3,391.62 and 874.30

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Solution

The fourth proportional to 2,262.16, 3,391.62 and 874.30 is: 1,310.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,262.16 : 3,391.62 = 874.30 : x
  2. Step 2: Convert to fraction form
    2,262.16/3,391.62 = 874.30/x
  3. Step 3: Cross multiply
    2,262.16x = 3,391.62 × 874.30
  4. Step 4: Simplify right side
    2,262.16x = 2,965,293.37
  5. Step 5: Solve for x
    x = 2,965,293.37/2,262.16
  6. Step 6: Final answer
    x = 1,310.82

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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.