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Finding the Fourth Proportional to 629,025.20, 943,537.80 and 419,073.20

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Solution

The fourth proportional to 629,025.20, 943,537.80 and 419,073.20 is: 628,609.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,025.20 : 943,537.80 = 419,073.20 : x
  2. Step 2: Convert to fraction form
    629,025.20/943,537.80 = 419,073.20/x
  3. Step 3: Cross multiply
    629,025.20x = 943,537.80 × 419,073.20
  4. Step 4: Simplify right side
    629,025.20x = 395,411,405,166.96
  5. Step 5: Solve for x
    x = 395,411,405,166.96/629,025.20
  6. Step 6: Final answer
    x = 628,609.80

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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.