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Finding the Fourth Proportional to 404,650.09, 558,417.04 and 223,361.97

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Solution

The fourth proportional to 404,650.09, 558,417.04 and 223,361.97 is: 308,239.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,650.09 : 558,417.04 = 223,361.97 : x
  2. Step 2: Convert to fraction form
    404,650.09/558,417.04 = 223,361.97/x
  3. Step 3: Cross multiply
    404,650.09x = 558,417.04 × 223,361.97
  4. Step 4: Simplify right side
    404,650.09x = 124,729,132,067.51
  5. Step 5: Solve for x
    x = 124,729,132,067.51/404,650.09
  6. Step 6: Final answer
    x = 308,239.48

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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.