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Finding the Fourth Proportional to 404,606.34, 558,353.97 and 223,318.26

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Solution

The fourth proportional to 404,606.34, 558,353.97 and 223,318.26 is: 308,177.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,606.34 : 558,353.97 = 223,318.26 : x
  2. Step 2: Convert to fraction form
    404,606.34/558,353.97 = 223,318.26/x
  3. Step 3: Cross multiply
    404,606.34x = 558,353.97 × 223,318.26
  4. Step 4: Simplify right side
    404,606.34x = 124,690,637,044.49
  5. Step 5: Solve for x
    x = 124,690,637,044.49/404,606.34
  6. Step 6: Final answer
    x = 308,177.66

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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.