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Finding the Fourth Proportional to 1,774.24, 2,662.40 and 734.08

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Solution

The fourth proportional to 1,774.24, 2,662.40 and 734.08 is: 1,101.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,774.24 : 2,662.40 = 734.08 : x
  2. Step 2: Convert to fraction form
    1,774.24/2,662.40 = 734.08/x
  3. Step 3: Cross multiply
    1,774.24x = 2,662.40 × 734.08
  4. Step 4: Simplify right side
    1,774.24x = 1,954,414.59
  5. Step 5: Solve for x
    x = 1,954,414.59/1,774.24
  6. Step 6: Final answer
    x = 1,101.55

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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.