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Finding the Fourth Proportional to 3,064.78, 4,229.11 and 1,788.46

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Solution

The fourth proportional to 3,064.78, 4,229.11 and 1,788.46 is: 2,467.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,064.78 : 4,229.11 = 1,788.46 : x
  2. Step 2: Convert to fraction form
    3,064.78/4,229.11 = 1,788.46/x
  3. Step 3: Cross multiply
    3,064.78x = 4,229.11 × 1,788.46
  4. Step 4: Simplify right side
    3,064.78x = 7,563,585.73
  5. Step 5: Solve for x
    x = 7,563,585.73/3,064.78
  6. Step 6: Final answer
    x = 2,467.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.