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Finding the Fourth Proportional to 468,808.53, 646,942.44 and 275,213.13

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Solution

The fourth proportional to 468,808.53, 646,942.44 and 275,213.13 is: 379,786.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,808.53 : 646,942.44 = 275,213.13 : x
  2. Step 2: Convert to fraction form
    468,808.53/646,942.44 = 275,213.13/x
  3. Step 3: Cross multiply
    468,808.53x = 646,942.44 × 275,213.13
  4. Step 4: Simplify right side
    468,808.53x = 178,047,053,842.24
  5. Step 5: Solve for x
    x = 178,047,053,842.24/468,808.53
  6. Step 6: Final answer
    x = 379,786.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.