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Finding the Fourth Proportional to 399,049.07, 598,573.67 and 266,188.82

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Solution

The fourth proportional to 399,049.07, 598,573.67 and 266,188.82 is: 399,283.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,049.07 : 598,573.67 = 266,188.82 : x
  2. Step 2: Convert to fraction form
    399,049.07/598,573.67 = 266,188.82/x
  3. Step 3: Cross multiply
    399,049.07x = 598,573.67 × 266,188.82
  4. Step 4: Simplify right side
    399,049.07x = 159,333,614,576.56
  5. Step 5: Solve for x
    x = 159,333,614,576.56/399,049.07
  6. Step 6: Final answer
    x = 399,283.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.