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Finding the Fourth Proportional to 926.24, 1,278.25 and 533.26

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Solution

The fourth proportional to 926.24, 1,278.25 and 533.26 is: 735.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    926.24 : 1,278.25 = 533.26 : x
  2. Step 2: Convert to fraction form
    926.24/1,278.25 = 533.26/x
  3. Step 3: Cross multiply
    926.24x = 1,278.25 × 533.26
  4. Step 4: Simplify right side
    926.24x = 681,639.60
  5. Step 5: Solve for x
    x = 681,639.60/926.24
  6. Step 6: Final answer
    x = 735.92

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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.