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Finding the Fourth Proportional to 3,297.78, 4,946.63 and 1,348.61

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Solution

The fourth proportional to 3,297.78, 4,946.63 and 1,348.61 is: 2,022.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,297.78 : 4,946.63 = 1,348.61 : x
  2. Step 2: Convert to fraction form
    3,297.78/4,946.63 = 1,348.61/x
  3. Step 3: Cross multiply
    3,297.78x = 4,946.63 × 1,348.61
  4. Step 4: Simplify right side
    3,297.78x = 6,671,043.21
  5. Step 5: Solve for x
    x = 6,671,043.21/3,297.78
  6. Step 6: Final answer
    x = 2,022.89

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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.