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Finding the Fourth Proportional to 293,713.65, 440,078.40 and 251,395.20

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Solution

The fourth proportional to 293,713.65, 440,078.40 and 251,395.20 is: 376,671.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,713.65 : 440,078.40 = 251,395.20 : x
  2. Step 2: Convert to fraction form
    293,713.65/440,078.40 = 251,395.20/x
  3. Step 3: Cross multiply
    293,713.65x = 440,078.40 × 251,395.20
  4. Step 4: Simplify right side
    293,713.65x = 110,633,597,383.68
  5. Step 5: Solve for x
    x = 110,633,597,383.68/293,713.65
  6. Step 6: Final answer
    x = 376,671.62

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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.