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Finding the Fourth Proportional to 449,220.03, 619,699.92 and 267,804.12

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Solution

The fourth proportional to 449,220.03, 619,699.92 and 267,804.12 is: 369,436.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,220.03 : 619,699.92 = 267,804.12 : x
  2. Step 2: Convert to fraction form
    449,220.03/619,699.92 = 267,804.12/x
  3. Step 3: Cross multiply
    449,220.03x = 619,699.92 × 267,804.12
  4. Step 4: Simplify right side
    449,220.03x = 165,958,193,059.28
  5. Step 5: Solve for x
    x = 165,958,193,059.28/449,220.03
  6. Step 6: Final answer
    x = 369,436.32

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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.