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Finding the Fourth Proportional to 463,011.80, 694,517.70 and 405,872.60

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Solution

The fourth proportional to 463,011.80, 694,517.70 and 405,872.60 is: 608,808.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,011.80 : 694,517.70 = 405,872.60 : x
  2. Step 2: Convert to fraction form
    463,011.80/694,517.70 = 405,872.60/x
  3. Step 3: Cross multiply
    463,011.80x = 694,517.70 × 405,872.60
  4. Step 4: Simplify right side
    463,011.80x = 281,885,704,645.02
  5. Step 5: Solve for x
    x = 281,885,704,645.02/463,011.80
  6. Step 6: Final answer
    x = 608,808.90

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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.