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Finding the Fourth Proportional to 1,103.88, 1,523.26 and 606.48

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Solution

The fourth proportional to 1,103.88, 1,523.26 and 606.48 is: 836.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103.88 : 1,523.26 = 606.48 : x
  2. Step 2: Convert to fraction form
    1,103.88/1,523.26 = 606.48/x
  3. Step 3: Cross multiply
    1,103.88x = 1,523.26 × 606.48
  4. Step 4: Simplify right side
    1,103.88x = 923,826.72
  5. Step 5: Solve for x
    x = 923,826.72/1,103.88
  6. Step 6: Final answer
    x = 836.89

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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.