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Finding the Fourth Proportional to 1,024.92, 1,414.89 and 693.23

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Solution

The fourth proportional to 1,024.92, 1,414.89 and 693.23 is: 956.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,024.92 : 1,414.89 = 693.23 : x
  2. Step 2: Convert to fraction form
    1,024.92/1,414.89 = 693.23/x
  3. Step 3: Cross multiply
    1,024.92x = 1,414.89 × 693.23
  4. Step 4: Simplify right side
    1,024.92x = 980,837.12
  5. Step 5: Solve for x
    x = 980,837.12/1,024.92
  6. Step 6: Final answer
    x = 956.99

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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.