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Finding the Fourth Proportional to 2,453.16, 3,679.89 and 992.32

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Solution

The fourth proportional to 2,453.16, 3,679.89 and 992.32 is: 1,488.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,453.16 : 3,679.89 = 992.32 : x
  2. Step 2: Convert to fraction form
    2,453.16/3,679.89 = 992.32/x
  3. Step 3: Cross multiply
    2,453.16x = 3,679.89 × 992.32
  4. Step 4: Simplify right side
    2,453.16x = 3,651,628.44
  5. Step 5: Solve for x
    x = 3,651,628.44/2,453.16
  6. Step 6: Final answer
    x = 1,488.54

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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.