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Finding the Fourth Proportional to 1,525.46, 2,288.17 and 551.33

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Solution

The fourth proportional to 1,525.46, 2,288.17 and 551.33 is: 826.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,525.46 : 2,288.17 = 551.33 : x
  2. Step 2: Convert to fraction form
    1,525.46/2,288.17 = 551.33/x
  3. Step 3: Cross multiply
    1,525.46x = 2,288.17 × 551.33
  4. Step 4: Simplify right side
    1,525.46x = 1,261,522.57
  5. Step 5: Solve for x
    x = 1,261,522.57/1,525.46
  6. Step 6: Final answer
    x = 826.98

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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.