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Finding the Fourth Proportional to 449,081.84, 619,717.42 and 267,700.25

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Solution

The fourth proportional to 449,081.84, 619,717.42 and 267,700.25 is: 369,417.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,081.84 : 619,717.42 = 267,700.25 : x
  2. Step 2: Convert to fraction form
    449,081.84/619,717.42 = 267,700.25/x
  3. Step 3: Cross multiply
    449,081.84x = 619,717.42 × 267,700.25
  4. Step 4: Simplify right side
    449,081.84x = 165,898,508,263.36
  5. Step 5: Solve for x
    x = 165,898,508,263.36/449,081.84
  6. Step 6: Final answer
    x = 369,417.09

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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.