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Finding the Fourth Proportional to 922.24, 1,272.66 and 529.23

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Solution

The fourth proportional to 922.24, 1,272.66 and 529.23 is: 730.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    922.24 : 1,272.66 = 529.23 : x
  2. Step 2: Convert to fraction form
    922.24/1,272.66 = 529.23/x
  3. Step 3: Cross multiply
    922.24x = 1,272.66 × 529.23
  4. Step 4: Simplify right side
    922.24x = 673,529.85
  5. Step 5: Solve for x
    x = 673,529.85/922.24
  6. Step 6: Final answer
    x = 730.32

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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.