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Finding the Fourth Proportional to 924.44, 1,275.42 and 531.18

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Solution

The fourth proportional to 924.44, 1,275.42 and 531.18 is: 732.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    924.44 : 1,275.42 = 531.18 : x
  2. Step 2: Convert to fraction form
    924.44/1,275.42 = 531.18/x
  3. Step 3: Cross multiply
    924.44x = 1,275.42 × 531.18
  4. Step 4: Simplify right side
    924.44x = 677,477.60
  5. Step 5: Solve for x
    x = 677,477.60/924.44
  6. Step 6: Final answer
    x = 732.85

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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.