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Finding the Fourth Proportional to 3,308.66, 4,963.54 and 1,228.68

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Solution

The fourth proportional to 3,308.66, 4,963.54 and 1,228.68 is: 1,843.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,308.66 : 4,963.54 = 1,228.68 : x
  2. Step 2: Convert to fraction form
    3,308.66/4,963.54 = 1,228.68/x
  3. Step 3: Cross multiply
    3,308.66x = 4,963.54 × 1,228.68
  4. Step 4: Simplify right side
    3,308.66x = 6,098,602.33
  5. Step 5: Solve for x
    x = 6,098,602.33/3,308.66
  6. Step 6: Final answer
    x = 1,843.22

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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.