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Finding the Fourth Proportional to 2,224.76, 3,338.29 and 992.98

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Solution

The fourth proportional to 2,224.76, 3,338.29 and 992.98 is: 1,489.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,224.76 : 3,338.29 = 992.98 : x
  2. Step 2: Convert to fraction form
    2,224.76/3,338.29 = 992.98/x
  3. Step 3: Cross multiply
    2,224.76x = 3,338.29 × 992.98
  4. Step 4: Simplify right side
    2,224.76x = 3,314,850.24
  5. Step 5: Solve for x
    x = 3,314,850.24/2,224.76
  6. Step 6: Final answer
    x = 1,489.98

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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.