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Finding the Fourth Proportional to 926.24, 1,278.18 and 532.96

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Solution

The fourth proportional to 926.24, 1,278.18 and 532.96 is: 735.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    926.24 : 1,278.18 = 532.96 : x
  2. Step 2: Convert to fraction form
    926.24/1,278.18 = 532.96/x
  3. Step 3: Cross multiply
    926.24x = 1,278.18 × 532.96
  4. Step 4: Simplify right side
    926.24x = 681,218.81
  5. Step 5: Solve for x
    x = 681,218.81/926.24
  6. Step 6: Final answer
    x = 735.47

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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.