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Finding the Fourth Proportional to 395,822.92, 593,676.78 and 115,264.84

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Solution

The fourth proportional to 395,822.92, 593,676.78 and 115,264.84 is: 172,880.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,822.92 : 593,676.78 = 115,264.84 : x
  2. Step 2: Convert to fraction form
    395,822.92/593,676.78 = 115,264.84/x
  3. Step 3: Cross multiply
    395,822.92x = 593,676.78 × 115,264.84
  4. Step 4: Simplify right side
    395,822.92x = 68,430,059,058.42
  5. Step 5: Solve for x
    x = 68,430,059,058.42/395,822.92
  6. Step 6: Final answer
    x = 172,880.49

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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.