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Finding the Fourth Proportional to 662,991.60, 994,487.40 and 411,049.20

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Solution

The fourth proportional to 662,991.60, 994,487.40 and 411,049.20 is: 616,573.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,991.60 : 994,487.40 = 411,049.20 : x
  2. Step 2: Convert to fraction form
    662,991.60/994,487.40 = 411,049.20/x
  3. Step 3: Cross multiply
    662,991.60x = 994,487.40 × 411,049.20
  4. Step 4: Simplify right side
    662,991.60x = 408,783,250,180.08
  5. Step 5: Solve for x
    x = 408,783,250,180.08/662,991.60
  6. Step 6: Final answer
    x = 616,573.80

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Similar ratio
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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.