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Finding the Fourth Proportional to 448,991.37, 619,687.17 and 267,714.45

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Solution

The fourth proportional to 448,991.37, 619,687.17 and 267,714.45 is: 369,493.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,991.37 : 619,687.17 = 267,714.45 : x
  2. Step 2: Convert to fraction form
    448,991.37/619,687.17 = 267,714.45/x
  3. Step 3: Cross multiply
    448,991.37x = 619,687.17 × 267,714.45
  4. Step 4: Simplify right side
    448,991.37x = 165,899,209,888.61
  5. Step 5: Solve for x
    x = 165,899,209,888.61/448,991.37
  6. Step 6: Final answer
    x = 369,493.09

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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.