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Finding the Fourth Proportional to 1,264.01, 1,745.41 and 792.69

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Solution

The fourth proportional to 1,264.01, 1,745.41 and 792.69 is: 1,094.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264.01 : 1,745.41 = 792.69 : x
  2. Step 2: Convert to fraction form
    1,264.01/1,745.41 = 792.69/x
  3. Step 3: Cross multiply
    1,264.01x = 1,745.41 × 792.69
  4. Step 4: Simplify right side
    1,264.01x = 1,383,572.13
  5. Step 5: Solve for x
    x = 1,383,572.13/1,264.01
  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.