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Finding the Fourth Proportional to 419,683.20, 629,670.60 and 183,195.60

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Solution

The fourth proportional to 419,683.20, 629,670.60 and 183,195.60 is: 274,857.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,683.20 : 629,670.60 = 183,195.60 : x
  2. Step 2: Convert to fraction form
    419,683.20/629,670.60 = 183,195.60/x
  3. Step 3: Cross multiply
    419,683.20x = 629,670.60 × 183,195.60
  4. Step 4: Simplify right side
    419,683.20x = 115,352,883,369.36
  5. Step 5: Solve for x
    x = 115,352,883,369.36/419,683.20
  6. Step 6: Final answer
    x = 274,857.04

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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.