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Finding the Fourth Proportional to 449,042.67, 619,663.50 and 267,661.13

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Solution

The fourth proportional to 449,042.67, 619,663.50 and 267,661.13 is: 369,363.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,042.67 : 619,663.50 = 267,661.13 : x
  2. Step 2: Convert to fraction form
    449,042.67/619,663.50 = 267,661.13/x
  3. Step 3: Cross multiply
    449,042.67x = 619,663.50 × 267,661.13
  4. Step 4: Simplify right side
    449,042.67x = 165,859,829,531.44
  5. Step 5: Solve for x
    x = 165,859,829,531.44/449,042.67
  6. Step 6: Final answer
    x = 369,363.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.