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Finding the Fourth Proportional to 404,361.06, 557,986.95 and 223,079.82

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Solution

The fourth proportional to 404,361.06, 557,986.95 and 223,079.82 is: 307,832.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,361.06 : 557,986.95 = 223,079.82 : x
  2. Step 2: Convert to fraction form
    404,361.06/557,986.95 = 223,079.82/x
  3. Step 3: Cross multiply
    404,361.06x = 557,986.95 × 223,079.82
  4. Step 4: Simplify right side
    404,361.06x = 124,475,628,368.35
  5. Step 5: Solve for x
    x = 124,475,628,368.35/404,361.06
  6. Step 6: Final answer
    x = 307,832.88

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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.