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Finding the Fourth Proportional to 3,308.46, 4,963.17 and 999.90

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Solution

The fourth proportional to 3,308.46, 4,963.17 and 999.90 is: 1,500.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,308.46 : 4,963.17 = 999.90 : x
  2. Step 2: Convert to fraction form
    3,308.46/4,963.17 = 999.90/x
  3. Step 3: Cross multiply
    3,308.46x = 4,963.17 × 999.90
  4. Step 4: Simplify right side
    3,308.46x = 4,962,673.68
  5. Step 5: Solve for x
    x = 4,962,673.68/3,308.46
  6. Step 6: Final answer
    x = 1,500.00

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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.