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Finding the Fourth Proportional to 3,612.94, 5,420.22 and 1,304.44

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Solution

The fourth proportional to 3,612.94, 5,420.22 and 1,304.44 is: 1,956.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.94 : 5,420.22 = 1,304.44 : x
  2. Step 2: Convert to fraction form
    3,612.94/5,420.22 = 1,304.44/x
  3. Step 3: Cross multiply
    3,612.94x = 5,420.22 × 1,304.44
  4. Step 4: Simplify right side
    3,612.94x = 7,070,333.33
  5. Step 5: Solve for x
    x = 7,070,333.33/3,612.94
  6. Step 6: Final answer
    x = 1,956.95

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1.5x scale

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.