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Finding the Fourth Proportional to 2,340.33, 3,509.25 and 696.66

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Solution

The fourth proportional to 2,340.33, 3,509.25 and 696.66 is: 1,044.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340.33 : 3,509.25 = 696.66 : x
  2. Step 2: Convert to fraction form
    2,340.33/3,509.25 = 696.66/x
  3. Step 3: Cross multiply
    2,340.33x = 3,509.25 × 696.66
  4. Step 4: Simplify right side
    2,340.33x = 2,444,754.11
  5. Step 5: Solve for x
    x = 2,444,754.11/2,340.33
  6. Step 6: Final answer
    x = 1,044.62

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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.