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Finding the Fourth Proportional to 2,245.97, 3,368.82 and 1,012.88

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Solution

The fourth proportional to 2,245.97, 3,368.82 and 1,012.88 is: 1,519.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,245.97 : 3,368.82 = 1,012.88 : x
  2. Step 2: Convert to fraction form
    2,245.97/3,368.82 = 1,012.88/x
  3. Step 3: Cross multiply
    2,245.97x = 3,368.82 × 1,012.88
  4. Step 4: Simplify right side
    2,245.97x = 3,412,210.40
  5. Step 5: Solve for x
    x = 3,412,210.40/2,245.97
  6. Step 6: Final answer
    x = 1,519.26

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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.