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Finding the Fourth Proportional to 1,184.68, 1,778.64 and 1,022.68

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Solution

The fourth proportional to 1,184.68, 1,778.64 and 1,022.68 is: 1,535.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.68 : 1,778.64 = 1,022.68 : x
  2. Step 2: Convert to fraction form
    1,184.68/1,778.64 = 1,022.68/x
  3. Step 3: Cross multiply
    1,184.68x = 1,778.64 × 1,022.68
  4. Step 4: Simplify right side
    1,184.68x = 1,818,979.56
  5. Step 5: Solve for x
    x = 1,818,979.56/1,184.68
  6. Step 6: Final answer
    x = 1,535.42

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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.