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Finding the Fourth Proportional to 1,696.14, 2,544.83 and 874.80

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Solution

The fourth proportional to 1,696.14, 2,544.83 and 874.80 is: 1,312.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,696.14 : 2,544.83 = 874.80 : x
  2. Step 2: Convert to fraction form
    1,696.14/2,544.83 = 874.80/x
  3. Step 3: Cross multiply
    1,696.14x = 2,544.83 × 874.80
  4. Step 4: Simplify right side
    1,696.14x = 2,226,212.91
  5. Step 5: Solve for x
    x = 2,226,212.91/1,696.14
  6. Step 6: Final answer
    x = 1,312.52

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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.