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Finding the Fourth Proportional to 1,864.26, 2,797.68 and 695.33

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Solution

The fourth proportional to 1,864.26, 2,797.68 and 695.33 is: 1,043.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.26 : 2,797.68 = 695.33 : x
  2. Step 2: Convert to fraction form
    1,864.26/2,797.68 = 695.33/x
  3. Step 3: Cross multiply
    1,864.26x = 2,797.68 × 695.33
  4. Step 4: Simplify right side
    1,864.26x = 1,945,293.37
  5. Step 5: Solve for x
    x = 1,945,293.37/1,864.26
  6. Step 6: Final answer
    x = 1,043.47

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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.