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Finding the Fourth Proportional to 1,032.62, 1,550.29 and 622.55

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Solution

The fourth proportional to 1,032.62, 1,550.29 and 622.55 is: 934.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032.62 : 1,550.29 = 622.55 : x
  2. Step 2: Convert to fraction form
    1,032.62/1,550.29 = 622.55/x
  3. Step 3: Cross multiply
    1,032.62x = 1,550.29 × 622.55
  4. Step 4: Simplify right side
    1,032.62x = 965,136.53
  5. Step 5: Solve for x
    x = 965,136.53/1,032.62
  6. Step 6: Final answer
    x = 934.65

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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.