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Finding the Fourth Proportional to 1,264.54, 1,745.53 and 792.97

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Solution

The fourth proportional to 1,264.54, 1,745.53 and 792.97 is: 1,094.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264.54 : 1,745.53 = 792.97 : x
  2. Step 2: Convert to fraction form
    1,264.54/1,745.53 = 792.97/x
  3. Step 3: Cross multiply
    1,264.54x = 1,745.53 × 792.97
  4. Step 4: Simplify right side
    1,264.54x = 1,384,152.92
  5. Step 5: Solve for x
    x = 1,384,152.92/1,264.54
  6. Step 6: Final answer
    x = 1,094.59

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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.