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Finding the Fourth Proportional to 965.44, 1,328.29 and 852.92

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Solution

The fourth proportional to 965.44, 1,328.29 and 852.92 is: 1,173.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    965.44 : 1,328.29 = 852.92 : x
  2. Step 2: Convert to fraction form
    965.44/1,328.29 = 852.92/x
  3. Step 3: Cross multiply
    965.44x = 1,328.29 × 852.92
  4. Step 4: Simplify right side
    965.44x = 1,132,925.11
  5. Step 5: Solve for x
    x = 1,132,925.11/965.44
  6. Step 6: Final answer
    x = 1,173.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.