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Finding the Fourth Proportional to 1,517.81, 2,276.72 and 593.64

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Solution

The fourth proportional to 1,517.81, 2,276.72 and 593.64 is: 890.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.81 : 2,276.72 = 593.64 : x
  2. Step 2: Convert to fraction form
    1,517.81/2,276.72 = 593.64/x
  3. Step 3: Cross multiply
    1,517.81x = 2,276.72 × 593.64
  4. Step 4: Simplify right side
    1,517.81x = 1,351,555.36
  5. Step 5: Solve for x
    x = 1,351,555.36/1,517.81
  6. Step 6: Final answer
    x = 890.46

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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.