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Finding the Fourth Proportional to 404,515.74, 558,243.09 and 223,239.12

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Solution

The fourth proportional to 404,515.74, 558,243.09 and 223,239.12 is: 308,076.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,515.74 : 558,243.09 = 223,239.12 : x
  2. Step 2: Convert to fraction form
    404,515.74/558,243.09 = 223,239.12/x
  3. Step 3: Cross multiply
    404,515.74x = 558,243.09 × 223,239.12
  4. Step 4: Simplify right side
    404,515.74x = 124,621,696,157.68
  5. Step 5: Solve for x
    x = 124,621,696,157.68/404,515.74
  6. Step 6: Final answer
    x = 308,076.26

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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.