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Finding the Fourth Proportional to 1,172.24, 1,758.64 and 350.44

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Solution

The fourth proportional to 1,172.24, 1,758.64 and 350.44 is: 525.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172.24 : 1,758.64 = 350.44 : x
  2. Step 2: Convert to fraction form
    1,172.24/1,758.64 = 350.44/x
  3. Step 3: Cross multiply
    1,172.24x = 1,758.64 × 350.44
  4. Step 4: Simplify right side
    1,172.24x = 616,297.80
  5. Step 5: Solve for x
    x = 616,297.80/1,172.24
  6. Step 6: Final answer
    x = 525.74

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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.