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Finding the Fourth Proportional to 483,231.26, 666,874.42 and 289,575.16

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Solution

The fourth proportional to 483,231.26, 666,874.42 and 289,575.16 is: 399,622.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,231.26 : 666,874.42 = 289,575.16 : x
  2. Step 2: Convert to fraction form
    483,231.26/666,874.42 = 289,575.16/x
  3. Step 3: Cross multiply
    483,231.26x = 666,874.42 × 289,575.16
  4. Step 4: Simplify right side
    483,231.26x = 193,110,266,871.41
  5. Step 5: Solve for x
    x = 193,110,266,871.41/483,231.26
  6. Step 6: Final answer
    x = 399,622.88

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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.