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Finding the Fourth Proportional to 363,672.90, 501,834.60 and 210,716.91

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Solution

The fourth proportional to 363,672.90, 501,834.60 and 210,716.91 is: 290,769.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,672.90 : 501,834.60 = 210,716.91 : x
  2. Step 2: Convert to fraction form
    363,672.90/501,834.60 = 210,716.91/x
  3. Step 3: Cross multiply
    363,672.90x = 501,834.60 × 210,716.91
  4. Step 4: Simplify right side
    363,672.90x = 105,745,036,243.09
  5. Step 5: Solve for x
    x = 105,745,036,243.09/363,672.90
  6. Step 6: Final answer
    x = 290,769.63

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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.