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Finding the Fourth Proportional to 641,912.02, 962,728.60 and 192,512.22

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Solution

The fourth proportional to 641,912.02, 962,728.60 and 192,512.22 is: 288,726.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,912.02 : 962,728.60 = 192,512.22 : x
  2. Step 2: Convert to fraction form
    641,912.02/962,728.60 = 192,512.22/x
  3. Step 3: Cross multiply
    641,912.02x = 962,728.60 × 192,512.22
  4. Step 4: Simplify right side
    641,912.02x = 185,337,020,043.49
  5. Step 5: Solve for x
    x = 185,337,020,043.49/641,912.02
  6. Step 6: Final answer
    x = 288,726.51

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1.5x scale

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.