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Finding the Fourth Proportional to 550,283.05, 825,424.58 and 371,823.85

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Solution

The fourth proportional to 550,283.05, 825,424.58 and 371,823.85 is: 557,735.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,283.05 : 825,424.58 = 371,823.85 : x
  2. Step 2: Convert to fraction form
    550,283.05/825,424.58 = 371,823.85/x
  3. Step 3: Cross multiply
    550,283.05x = 825,424.58 × 371,823.85
  4. Step 4: Simplify right side
    550,283.05x = 306,912,543,361.11
  5. Step 5: Solve for x
    x = 306,912,543,361.11/550,283.05
  6. Step 6: Final answer
    x = 557,735.78

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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.