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Finding the Fourth Proportional to 2,295.90, 3,441.96 and 908.64

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Solution

The fourth proportional to 2,295.90, 3,441.96 and 908.64 is: 1,362.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,295.90 : 3,441.96 = 908.64 : x
  2. Step 2: Convert to fraction form
    2,295.90/3,441.96 = 908.64/x
  3. Step 3: Cross multiply
    2,295.90x = 3,441.96 × 908.64
  4. Step 4: Simplify right side
    2,295.90x = 3,127,502.53
  5. Step 5: Solve for x
    x = 3,127,502.53/2,295.90
  6. Step 6: Final answer
    x = 1,362.21

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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.