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Finding the Fourth Proportional to 1,758.50, 2,638.20 and 604.26

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Solution

The fourth proportional to 1,758.50, 2,638.20 and 604.26 is: 906.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.50 : 2,638.20 = 604.26 : x
  2. Step 2: Convert to fraction form
    1,758.50/2,638.20 = 604.26/x
  3. Step 3: Cross multiply
    1,758.50x = 2,638.20 × 604.26
  4. Step 4: Simplify right side
    1,758.50x = 1,594,158.73
  5. Step 5: Solve for x
    x = 1,594,158.73/1,758.50
  6. Step 6: Final answer
    x = 906.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.