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Finding the Fourth Proportional to 2,334.82, 3,502.74 and 691.49

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Solution

The fourth proportional to 2,334.82, 3,502.74 and 691.49 is: 1,037.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,334.82 : 3,502.74 = 691.49 : x
  2. Step 2: Convert to fraction form
    2,334.82/3,502.74 = 691.49/x
  3. Step 3: Cross multiply
    2,334.82x = 3,502.74 × 691.49
  4. Step 4: Simplify right side
    2,334.82x = 2,422,104.04
  5. Step 5: Solve for x
    x = 2,422,104.04/2,334.82
  6. Step 6: Final answer
    x = 1,037.39

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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.