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Finding the Fourth Proportional to 632,074.20, 948,111.30 and 419,497.80

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Solution

The fourth proportional to 632,074.20, 948,111.30 and 419,497.80 is: 629,246.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,074.20 : 948,111.30 = 419,497.80 : x
  2. Step 2: Convert to fraction form
    632,074.20/948,111.30 = 419,497.80/x
  3. Step 3: Cross multiply
    632,074.20x = 948,111.30 × 419,497.80
  4. Step 4: Simplify right side
    632,074.20x = 397,730,604,505.14
  5. Step 5: Solve for x
    x = 397,730,604,505.14/632,074.20
  6. Step 6: Final answer
    x = 629,246.70

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Double scale
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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.