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Finding the Fourth Proportional to 374,979.66, 517,468.22 and 202,893.83

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Solution

The fourth proportional to 374,979.66, 517,468.22 and 202,893.83 is: 279,991.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,979.66 : 517,468.22 = 202,893.83 : x
  2. Step 2: Convert to fraction form
    374,979.66/517,468.22 = 202,893.83/x
  3. Step 3: Cross multiply
    374,979.66x = 517,468.22 × 202,893.83
  4. Step 4: Simplify right side
    374,979.66x = 104,991,105,457.27
  5. Step 5: Solve for x
    x = 104,991,105,457.27/374,979.66
  6. Step 6: Final answer
    x = 279,991.47

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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.