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Finding the Fourth Proportional to 924.62, 1,393.16 and 825.17

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Solution

The fourth proportional to 924.62, 1,393.16 and 825.17 is: 1,243.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    924.62 : 1,393.16 = 825.17 : x
  2. Step 2: Convert to fraction form
    924.62/1,393.16 = 825.17/x
  3. Step 3: Cross multiply
    924.62x = 1,393.16 × 825.17
  4. Step 4: Simplify right side
    924.62x = 1,149,582.75
  5. Step 5: Solve for x
    x = 1,149,582.75/924.62
  6. Step 6: Final answer
    x = 1,243.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.