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Finding the Fourth Proportional to 1,794.26, 2,476.20 and 997.68

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Solution

The fourth proportional to 1,794.26, 2,476.20 and 997.68 is: 1,376.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,794.26 : 2,476.20 = 997.68 : x
  2. Step 2: Convert to fraction form
    1,794.26/2,476.20 = 997.68/x
  3. Step 3: Cross multiply
    1,794.26x = 2,476.20 × 997.68
  4. Step 4: Simplify right side
    1,794.26x = 2,470,455.22
  5. Step 5: Solve for x
    x = 2,470,455.22/1,794.26
  6. Step 6: Final answer
    x = 1,376.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.