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Finding the Fourth Proportional to 1,168.56, 1,752.60 and 551.92

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Solution

The fourth proportional to 1,168.56, 1,752.60 and 551.92 is: 827.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.56 : 1,752.60 = 551.92 : x
  2. Step 2: Convert to fraction form
    1,168.56/1,752.60 = 551.92/x
  3. Step 3: Cross multiply
    1,168.56x = 1,752.60 × 551.92
  4. Step 4: Simplify right side
    1,168.56x = 967,294.99
  5. Step 5: Solve for x
    x = 967,294.99/1,168.56
  6. Step 6: Final answer
    x = 827.77

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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.