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Finding the Fourth Proportional to 374,979.92, 517,473.97 and 205,213.64

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Solution

The fourth proportional to 374,979.92, 517,473.97 and 205,213.64 is: 283,195.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,979.92 : 517,473.97 = 205,213.64 : x
  2. Step 2: Convert to fraction form
    374,979.92/517,473.97 = 205,213.64/x
  3. Step 3: Cross multiply
    374,979.92x = 517,473.97 × 205,213.64
  4. Step 4: Simplify right side
    374,979.92x = 106,192,713,888.55
  5. Step 5: Solve for x
    x = 106,192,713,888.55/374,979.92
  6. Step 6: Final answer
    x = 283,195.74

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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.