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Finding the Fourth Proportional to 2,308.36, 3,460.92 and 922

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Solution

The fourth proportional to 2,308.36, 3,460.92 and 922 is: 1,382.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,308.36 : 3,460.92 = 922 : x
  2. Step 2: Convert to fraction form
    2,308.36/3,460.92 = 922/x
  3. Step 3: Cross multiply
    2,308.36x = 3,460.92 × 922
  4. Step 4: Simplify right side
    2,308.36x = 3,190,968.24
  5. Step 5: Solve for x
    x = 3,190,968.24/2,308.36
  6. Step 6: Final answer
    x = 1,382.35

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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.