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Finding the Fourth Proportional to 404,611.91, 558,364.43 and 225,763.91

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Solution

The fourth proportional to 404,611.91, 558,364.43 and 225,763.91 is: 311,554.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,611.91 : 558,364.43 = 225,763.91 : x
  2. Step 2: Convert to fraction form
    404,611.91/558,364.43 = 225,763.91/x
  3. Step 3: Cross multiply
    404,611.91x = 558,364.43 × 225,763.91
  4. Step 4: Simplify right side
    404,611.91x = 126,058,536,921.72
  5. Step 5: Solve for x
    x = 126,058,536,921.72/404,611.91
  6. Step 6: Final answer
    x = 311,554.19

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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.