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Finding the Fourth Proportional to 330,676.11, 495,172.84 and 218,014.52

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Solution

The fourth proportional to 330,676.11, 495,172.84 and 218,014.52 is: 326,467.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,676.11 : 495,172.84 = 218,014.52 : x
  2. Step 2: Convert to fraction form
    330,676.11/495,172.84 = 218,014.52/x
  3. Step 3: Cross multiply
    330,676.11x = 495,172.84 × 218,014.52
  4. Step 4: Simplify right side
    330,676.11x = 107,954,869,029.64
  5. Step 5: Solve for x
    x = 107,954,869,029.64/330,676.11
  6. Step 6: Final answer
    x = 326,467.10

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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.