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Finding the Fourth Proportional to 449,841.65, 674,429.11 and 272,306.66

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Solution

The fourth proportional to 449,841.65, 674,429.11 and 272,306.66 is: 408,258.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,841.65 : 674,429.11 = 272,306.66 : x
  2. Step 2: Convert to fraction form
    449,841.65/674,429.11 = 272,306.66/x
  3. Step 3: Cross multiply
    449,841.65x = 674,429.11 × 272,306.66
  4. Step 4: Simplify right side
    449,841.65x = 183,651,534,297.96
  5. Step 5: Solve for x
    x = 183,651,534,297.96/449,841.65
  6. Step 6: Final answer
    x = 408,258.19

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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.