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Finding the Fourth Proportional to 449,504.09, 674,354.61 and 169,021.34

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Solution

The fourth proportional to 449,504.09, 674,354.61 and 169,021.34 is: 253,569.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,504.09 : 674,354.61 = 169,021.34 : x
  2. Step 2: Convert to fraction form
    449,504.09/674,354.61 = 169,021.34/x
  3. Step 3: Cross multiply
    449,504.09x = 674,354.61 × 169,021.34
  4. Step 4: Simplify right side
    449,504.09x = 113,980,319,817.38
  5. Step 5: Solve for x
    x = 113,980,319,817.38/449,504.09
  6. Step 6: Final answer
    x = 253,569.04

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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.