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Finding the Fourth Proportional to 2,457.26, 3,685.86 and 996.40

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Solution

The fourth proportional to 2,457.26, 3,685.86 and 996.40 is: 1,494.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.26 : 3,685.86 = 996.40 : x
  2. Step 2: Convert to fraction form
    2,457.26/3,685.86 = 996.40/x
  3. Step 3: Cross multiply
    2,457.26x = 3,685.86 × 996.40
  4. Step 4: Simplify right side
    2,457.26x = 3,672,590.90
  5. Step 5: Solve for x
    x = 3,672,590.90/2,457.26
  6. Step 6: Final answer
    x = 1,494.59

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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.