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Finding the Fourth Proportional to 404,661.31, 558,429.46 and 223,373.30

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Solution

The fourth proportional to 404,661.31, 558,429.46 and 223,373.30 is: 308,253.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,661.31 : 558,429.46 = 223,373.30 : x
  2. Step 2: Convert to fraction form
    404,661.31/558,429.46 = 223,373.30/x
  3. Step 3: Cross multiply
    404,661.31x = 558,429.46 × 223,373.30
  4. Step 4: Simplify right side
    404,661.31x = 124,738,227,946.84
  5. Step 5: Solve for x
    x = 124,738,227,946.84/404,661.31
  6. Step 6: Final answer
    x = 308,253.41

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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.