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Finding the Fourth Proportional to 448,490.88, 619,067.40 and 267,259.66

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Solution

The fourth proportional to 448,490.88, 619,067.40 and 267,259.66 is: 368,907.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,490.88 : 619,067.40 = 267,259.66 : x
  2. Step 2: Convert to fraction form
    448,490.88/619,067.40 = 267,259.66/x
  3. Step 3: Cross multiply
    448,490.88x = 619,067.40 × 267,259.66
  4. Step 4: Simplify right side
    448,490.88x = 165,451,742,841.08
  5. Step 5: Solve for x
    x = 165,451,742,841.08/448,490.88
  6. Step 6: Final answer
    x = 368,907.71

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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.