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Finding the Fourth Proportional to 395,448.71, 593,274.18 and 114,965.96

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Solution

The fourth proportional to 395,448.71, 593,274.18 and 114,965.96 is: 172,478.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,448.71 : 593,274.18 = 114,965.96 : x
  2. Step 2: Convert to fraction form
    395,448.71/593,274.18 = 114,965.96/x
  3. Step 3: Cross multiply
    395,448.71x = 593,274.18 × 114,965.96
  4. Step 4: Simplify right side
    395,448.71x = 68,206,335,646.91
  5. Step 5: Solve for x
    x = 68,206,335,646.91/395,448.71
  6. Step 6: Final answer
    x = 172,478.34

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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.