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Finding the Fourth Proportional to 293,786.90, 440,680.35 and 265,217.30

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Solution

The fourth proportional to 293,786.90, 440,680.35 and 265,217.30 is: 397,825.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,786.90 : 440,680.35 = 265,217.30 : x
  2. Step 2: Convert to fraction form
    293,786.90/440,680.35 = 265,217.30/x
  3. Step 3: Cross multiply
    293,786.90x = 440,680.35 × 265,217.30
  4. Step 4: Simplify right side
    293,786.90x = 116,876,052,590.06
  5. Step 5: Solve for x
    x = 116,876,052,590.06/293,786.90
  6. Step 6: Final answer
    x = 397,825.95

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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.