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Finding the Fourth Proportional to 1,696.19, 2,544.02 and 656.68

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Solution

The fourth proportional to 1,696.19, 2,544.02 and 656.68 is: 984.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,696.19 : 2,544.02 = 656.68 : x
  2. Step 2: Convert to fraction form
    1,696.19/2,544.02 = 656.68/x
  3. Step 3: Cross multiply
    1,696.19x = 2,544.02 × 656.68
  4. Step 4: Simplify right side
    1,696.19x = 1,670,594.33
  5. Step 5: Solve for x
    x = 1,670,594.33/1,696.19
  6. Step 6: Final answer
    x = 984.91

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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.