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Finding the Fourth Proportional to 330,674.74, 496,215.16 and 262,805.29

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Solution

The fourth proportional to 330,674.74, 496,215.16 and 262,805.29 is: 394,369.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,674.74 : 496,215.16 = 262,805.29 : x
  2. Step 2: Convert to fraction form
    330,674.74/496,215.16 = 262,805.29/x
  3. Step 3: Cross multiply
    330,674.74x = 496,215.16 × 262,805.29
  4. Step 4: Simplify right side
    330,674.74x = 130,407,967,128.65
  5. Step 5: Solve for x
    x = 130,407,967,128.65/330,674.74
  6. Step 6: Final answer
    x = 394,369.31

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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.