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Finding the Fourth Proportional to 325,964.92, 488,189.22 and 316,995.88

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Solution

The fourth proportional to 325,964.92, 488,189.22 and 316,995.88 is: 474,756.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,964.92 : 488,189.22 = 316,995.88 : x
  2. Step 2: Convert to fraction form
    325,964.92/488,189.22 = 316,995.88/x
  3. Step 3: Cross multiply
    325,964.92x = 488,189.22 × 316,995.88
  4. Step 4: Simplify right side
    325,964.92x = 154,753,971,400.41
  5. Step 5: Solve for x
    x = 154,753,971,400.41/325,964.92
  6. Step 6: Final answer
    x = 474,756.52

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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.