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Finding the Fourth Proportional to 2,294.13, 3,439.53 and 906.75

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Solution

The fourth proportional to 2,294.13, 3,439.53 and 906.75 is: 1,359.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,294.13 : 3,439.53 = 906.75 : x
  2. Step 2: Convert to fraction form
    2,294.13/3,439.53 = 906.75/x
  3. Step 3: Cross multiply
    2,294.13x = 3,439.53 × 906.75
  4. Step 4: Simplify right side
    2,294.13x = 3,118,793.83
  5. Step 5: Solve for x
    x = 3,118,793.83/2,294.13
  6. Step 6: Final answer
    x = 1,359.47

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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.