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Finding the Fourth Proportional to 1,166.39, 1,749.99 and 472.84

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Solution

The fourth proportional to 1,166.39, 1,749.99 and 472.84 is: 709.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.39 : 1,749.99 = 472.84 : x
  2. Step 2: Convert to fraction form
    1,166.39/1,749.99 = 472.84/x
  3. Step 3: Cross multiply
    1,166.39x = 1,749.99 × 472.84
  4. Step 4: Simplify right side
    1,166.39x = 827,465.27
  5. Step 5: Solve for x
    x = 827,465.27/1,166.39
  6. Step 6: Final answer
    x = 709.42

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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.