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Finding the Fourth Proportional to 403,799.82, 605,128.72 and 223,964.48

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Solution

The fourth proportional to 403,799.82, 605,128.72 and 223,964.48 is: 335,630.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,799.82 : 605,128.72 = 223,964.48 : x
  2. Step 2: Convert to fraction form
    403,799.82/605,128.72 = 223,964.48/x
  3. Step 3: Cross multiply
    403,799.82x = 605,128.72 × 223,964.48
  4. Step 4: Simplify right side
    403,799.82x = 135,527,336,600.27
  5. Step 5: Solve for x
    x = 135,527,336,600.27/403,799.82
  6. Step 6: Final answer
    x = 335,630.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.