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Finding the Fourth Proportional to 925.24, 1,379.36 and 852.16

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Solution

The fourth proportional to 925.24, 1,379.36 and 852.16 is: 1,270.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.24 : 1,379.36 = 852.16 : x
  2. Step 2: Convert to fraction form
    925.24/1,379.36 = 852.16/x
  3. Step 3: Cross multiply
    925.24x = 1,379.36 × 852.16
  4. Step 4: Simplify right side
    925.24x = 1,175,435.42
  5. Step 5: Solve for x
    x = 1,175,435.42/925.24
  6. Step 6: Final answer
    x = 1,270.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.