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Finding the Fourth Proportional to 404,991.56, 558,893.72 and 223,703.03

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Solution

The fourth proportional to 404,991.56, 558,893.72 and 223,703.03 is: 308,713.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,991.56 : 558,893.72 = 223,703.03 : x
  2. Step 2: Convert to fraction form
    404,991.56/558,893.72 = 223,703.03/x
  3. Step 3: Cross multiply
    404,991.56x = 558,893.72 × 223,703.03
  4. Step 4: Simplify right side
    404,991.56x = 125,026,217,493.46
  5. Step 5: Solve for x
    x = 125,026,217,493.46/404,991.56
  6. Step 6: Final answer
    x = 308,713.14

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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.