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Finding the Fourth Proportional to 419,592.80, 629,393.60 and 335,885.08

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Solution

The fourth proportional to 419,592.80, 629,393.60 and 335,885.08 is: 503,831.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,592.80 : 629,393.60 = 335,885.08 : x
  2. Step 2: Convert to fraction form
    419,592.80/629,393.60 = 335,885.08/x
  3. Step 3: Cross multiply
    419,592.80x = 629,393.60 × 335,885.08
  4. Step 4: Simplify right side
    419,592.80x = 211,403,914,861.10
  5. Step 5: Solve for x
    x = 211,403,914,861.10/419,592.80
  6. Step 6: Final answer
    x = 503,831.13

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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.