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Finding the Fourth Proportional to 490,188.71, 735,912.75 and 377,940.23

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Solution

The fourth proportional to 490,188.71, 735,912.75 and 377,940.23 is: 567,395.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,188.71 : 735,912.75 = 377,940.23 : x
  2. Step 2: Convert to fraction form
    490,188.71/735,912.75 = 377,940.23/x
  3. Step 3: Cross multiply
    490,188.71x = 735,912.75 × 377,940.23
  4. Step 4: Simplify right side
    490,188.71x = 278,131,033,994.93
  5. Step 5: Solve for x
    x = 278,131,033,994.93/490,188.71
  6. Step 6: Final answer
    x = 567,395.84

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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.