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Finding the Fourth Proportional to 449,594.78, 673,813.97 and 212,414.63

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Solution

The fourth proportional to 449,594.78, 673,813.97 and 212,414.63 is: 318,348.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,594.78 : 673,813.97 = 212,414.63 : x
  2. Step 2: Convert to fraction form
    449,594.78/673,813.97 = 212,414.63/x
  3. Step 3: Cross multiply
    449,594.78x = 673,813.97 × 212,414.63
  4. Step 4: Simplify right side
    449,594.78x = 143,127,942,288.35
  5. Step 5: Solve for x
    x = 143,127,942,288.35/449,594.78
  6. Step 6: Final answer
    x = 318,348.77

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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.