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Finding the Fourth Proportional to 432,311.80, 648,851.70 and 254,596.60

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Solution

The fourth proportional to 432,311.80, 648,851.70 and 254,596.60 is: 382,121.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,311.80 : 648,851.70 = 254,596.60 : x
  2. Step 2: Convert to fraction form
    432,311.80/648,851.70 = 254,596.60/x
  3. Step 3: Cross multiply
    432,311.80x = 648,851.70 × 254,596.60
  4. Step 4: Simplify right side
    432,311.80x = 165,195,436,724.22
  5. Step 5: Solve for x
    x = 165,195,436,724.22/432,311.80
  6. Step 6: Final answer
    x = 382,121.04

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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.