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Finding the Fourth Proportional to 3,310.78, 4,966.14 and 1,002.28

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Solution

The fourth proportional to 3,310.78, 4,966.14 and 1,002.28 is: 1,503.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,310.78 : 4,966.14 = 1,002.28 : x
  2. Step 2: Convert to fraction form
    3,310.78/4,966.14 = 1,002.28/x
  3. Step 3: Cross multiply
    3,310.78x = 4,966.14 × 1,002.28
  4. Step 4: Simplify right side
    3,310.78x = 4,977,462.80
  5. Step 5: Solve for x
    x = 4,977,462.80/3,310.78
  6. Step 6: Final answer
    x = 1,503.41

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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.