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Finding the Fourth Proportional to 624,847.70, 861,972.41 and 366,555.71

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Solution

The fourth proportional to 624,847.70, 861,972.41 and 366,555.71 is: 505,660.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,847.70 : 861,972.41 = 366,555.71 : x
  2. Step 2: Convert to fraction form
    624,847.70/861,972.41 = 366,555.71/x
  3. Step 3: Cross multiply
    624,847.70x = 861,972.41 × 366,555.71
  4. Step 4: Simplify right side
    624,847.70x = 315,960,902,605.32
  5. Step 5: Solve for x
    x = 315,960,902,605.32/624,847.70
  6. Step 6: Final answer
    x = 505,660.67

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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.