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Finding the Fourth Proportional to 1,166.84, 1,748.42 and 550.40

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Solution

The fourth proportional to 1,166.84, 1,748.42 and 550.40 is: 824.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.84 : 1,748.42 = 550.40 : x
  2. Step 2: Convert to fraction form
    1,166.84/1,748.42 = 550.40/x
  3. Step 3: Cross multiply
    1,166.84x = 1,748.42 × 550.40
  4. Step 4: Simplify right side
    1,166.84x = 962,330.37
  5. Step 5: Solve for x
    x = 962,330.37/1,166.84
  6. Step 6: Final answer
    x = 824.73

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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.