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Finding the Fourth Proportional to 3,476.99, 5,215.49 and 844.48

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Solution

The fourth proportional to 3,476.99, 5,215.49 and 844.48 is: 1,266.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,476.99 : 5,215.49 = 844.48 : x
  2. Step 2: Convert to fraction form
    3,476.99/5,215.49 = 844.48/x
  3. Step 3: Cross multiply
    3,476.99x = 5,215.49 × 844.48
  4. Step 4: Simplify right side
    3,476.99x = 4,404,382.46
  5. Step 5: Solve for x
    x = 4,404,382.46/3,476.99
  6. Step 6: Final answer
    x = 1,266.72

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Double scale
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Similar ratio
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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.