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Finding the Fourth Proportional to 374,854.43, 517,286.25 and 213,761.33

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Solution

The fourth proportional to 374,854.43, 517,286.25 and 213,761.33 is: 294,983.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,854.43 : 517,286.25 = 213,761.33 : x
  2. Step 2: Convert to fraction form
    374,854.43/517,286.25 = 213,761.33/x
  3. Step 3: Cross multiply
    374,854.43x = 517,286.25 × 213,761.33
  4. Step 4: Simplify right side
    374,854.43x = 110,575,796,144.11
  5. Step 5: Solve for x
    x = 110,575,796,144.11/374,854.43
  6. Step 6: Final answer
    x = 294,983.30

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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.