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Finding the Fourth Proportional to 2,228.96, 3,344.25 and 930.53

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Solution

The fourth proportional to 2,228.96, 3,344.25 and 930.53 is: 1,396.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.96 : 3,344.25 = 930.53 : x
  2. Step 2: Convert to fraction form
    2,228.96/3,344.25 = 930.53/x
  3. Step 3: Cross multiply
    2,228.96x = 3,344.25 × 930.53
  4. Step 4: Simplify right side
    2,228.96x = 3,111,924.95
  5. Step 5: Solve for x
    x = 3,111,924.95/2,228.96
  6. Step 6: Final answer
    x = 1,396.13

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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.