Home / 629,621.40-944,432.10-453,786.60

Finding the Fourth Proportional to 629,621.40, 944,432.10 and 453,786.60

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Solution

The fourth proportional to 629,621.40, 944,432.10 and 453,786.60 is: 680,679.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,621.40 : 944,432.10 = 453,786.60 : x
  2. Step 2: Convert to fraction form
    629,621.40/944,432.10 = 453,786.60/x
  3. Step 3: Cross multiply
    629,621.40x = 944,432.10 × 453,786.60
  4. Step 4: Simplify right side
    629,621.40x = 428,570,631,589.86
  5. Step 5: Solve for x
    x = 428,570,631,589.86/629,621.40
  6. Step 6: Final answer
    x = 680,679.90

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Double scale
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Similar ratio
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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.