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Finding the Fourth Proportional to 1,774.44, 2,661.72 and 908.08

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Solution

The fourth proportional to 1,774.44, 2,661.72 and 908.08 is: 1,362.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,774.44 : 2,661.72 = 908.08 : x
  2. Step 2: Convert to fraction form
    1,774.44/2,661.72 = 908.08/x
  3. Step 3: Cross multiply
    1,774.44x = 2,661.72 × 908.08
  4. Step 4: Simplify right side
    1,774.44x = 2,417,054.70
  5. Step 5: Solve for x
    x = 2,417,054.70/1,774.44
  6. Step 6: Final answer
    x = 1,362.15

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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.