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Finding the Fourth Proportional to 404,665.44, 558,469.20 and 223,412.28

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Solution

The fourth proportional to 404,665.44, 558,469.20 and 223,412.28 is: 308,326.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,665.44 : 558,469.20 = 223,412.28 : x
  2. Step 2: Convert to fraction form
    404,665.44/558,469.20 = 223,412.28/x
  3. Step 3: Cross multiply
    404,665.44x = 558,469.20 × 223,412.28
  4. Step 4: Simplify right side
    404,665.44x = 124,768,877,281.78
  5. Step 5: Solve for x
    x = 124,768,877,281.78/404,665.44
  6. Step 6: Final answer
    x = 308,326.00

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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.