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Finding the Fourth Proportional to 449,740.80, 674,611.20 and 169,320.96

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Solution

The fourth proportional to 449,740.80, 674,611.20 and 169,320.96 is: 253,981.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,740.80 : 674,611.20 = 169,320.96 : x
  2. Step 2: Convert to fraction form
    449,740.80/674,611.20 = 169,320.96/x
  3. Step 3: Cross multiply
    449,740.80x = 674,611.20 × 169,320.96
  4. Step 4: Simplify right side
    449,740.80x = 114,225,816,010.75
  5. Step 5: Solve for x
    x = 114,225,816,010.75/449,740.80
  6. Step 6: Final answer
    x = 253,981.44

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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.