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Finding the Fourth Proportional to 449,045.70, 619,667.61 and 267,664.08

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Solution

The fourth proportional to 449,045.70, 619,667.61 and 267,664.08 is: 369,367.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,045.70 : 619,667.61 = 267,664.08 : x
  2. Step 2: Convert to fraction form
    449,045.70/619,667.61 = 267,664.08/x
  3. Step 3: Cross multiply
    449,045.70x = 619,667.61 × 267,664.08
  4. Step 4: Simplify right side
    449,045.70x = 165,862,760,736.45
  5. Step 5: Solve for x
    x = 165,862,760,736.45/449,045.70
  6. Step 6: Final answer
    x = 369,367.22

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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.