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Finding the Fourth Proportional to 449,892.80, 674,644.80 and 225,166.40

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Solution

The fourth proportional to 449,892.80, 674,644.80 and 225,166.40 is: 337,652.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,892.80 : 674,644.80 = 225,166.40 : x
  2. Step 2: Convert to fraction form
    449,892.80/674,644.80 = 225,166.40/x
  3. Step 3: Cross multiply
    449,892.80x = 674,644.80 × 225,166.40
  4. Step 4: Simplify right side
    449,892.80x = 151,907,340,894.72
  5. Step 5: Solve for x
    x = 151,907,340,894.72/449,892.80
  6. Step 6: Final answer
    x = 337,652.30

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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.