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Finding the Fourth Proportional to 404,936.78, 558,802.07 and 223,644.81

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Solution

The fourth proportional to 404,936.78, 558,802.07 and 223,644.81 is: 308,623.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,936.78 : 558,802.07 = 223,644.81 : x
  2. Step 2: Convert to fraction form
    404,936.78/558,802.07 = 223,644.81/x
  3. Step 3: Cross multiply
    404,936.78x = 558,802.07 × 223,644.81
  4. Step 4: Simplify right side
    404,936.78x = 124,973,181,654.53
  5. Step 5: Solve for x
    x = 124,973,181,654.53/404,936.78
  6. Step 6: Final answer
    x = 308,623.93

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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.