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Finding the Fourth Proportional to 404,636.62, 558,398.58 and 223,348.60

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Solution

The fourth proportional to 404,636.62, 558,398.58 and 223,348.60 is: 308,221.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,636.62 : 558,398.58 = 223,348.60 : x
  2. Step 2: Convert to fraction form
    404,636.62/558,398.58 = 223,348.60/x
  3. Step 3: Cross multiply
    404,636.62x = 558,398.58 × 223,348.60
  4. Step 4: Simplify right side
    404,636.62x = 124,717,541,084.99
  5. Step 5: Solve for x
    x = 124,717,541,084.99/404,636.62
  6. Step 6: Final answer
    x = 308,221.09

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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.