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Finding the Fourth Proportional to 1,169.92, 1,755.14 and 348.26

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Solution

The fourth proportional to 1,169.92, 1,755.14 and 348.26 is: 522.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169.92 : 1,755.14 = 348.26 : x
  2. Step 2: Convert to fraction form
    1,169.92/1,755.14 = 348.26/x
  3. Step 3: Cross multiply
    1,169.92x = 1,755.14 × 348.26
  4. Step 4: Simplify right side
    1,169.92x = 611,244.41
  5. Step 5: Solve for x
    x = 611,244.41/1,169.92
  6. Step 6: Final answer
    x = 522.47

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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.