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Finding the Fourth Proportional to 1,417.26, 1,955.80 and 796.26

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Solution

The fourth proportional to 1,417.26, 1,955.80 and 796.26 is: 1,098.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.26 : 1,955.80 = 796.26 : x
  2. Step 2: Convert to fraction form
    1,417.26/1,955.80 = 796.26/x
  3. Step 3: Cross multiply
    1,417.26x = 1,955.80 × 796.26
  4. Step 4: Simplify right side
    1,417.26x = 1,557,325.31
  5. Step 5: Solve for x
    x = 1,557,325.31/1,417.26
  6. Step 6: Final answer
    x = 1,098.83

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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.