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Finding the Fourth Proportional to 543,955.70, 816,096.54 and 219,576.78

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Solution

The fourth proportional to 543,955.70, 816,096.54 and 219,576.78 is: 329,430.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,955.70 : 816,096.54 = 219,576.78 : x
  2. Step 2: Convert to fraction form
    543,955.70/816,096.54 = 219,576.78/x
  3. Step 3: Cross multiply
    543,955.70x = 816,096.54 × 219,576.78
  4. Step 4: Simplify right side
    543,955.70x = 179,195,850,422.34
  5. Step 5: Solve for x
    x = 179,195,850,422.34/543,955.70
  6. Step 6: Final answer
    x = 329,430.97

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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.