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Finding the Fourth Proportional to 962.68, 1,441.71 and 550.58

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Solution

The fourth proportional to 962.68, 1,441.71 and 550.58 is: 824.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.68 : 1,441.71 = 550.58 : x
  2. Step 2: Convert to fraction form
    962.68/1,441.71 = 550.58/x
  3. Step 3: Cross multiply
    962.68x = 1,441.71 × 550.58
  4. Step 4: Simplify right side
    962.68x = 793,776.69
  5. Step 5: Solve for x
    x = 793,776.69/962.68
  6. Step 6: Final answer
    x = 824.55

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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.