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Finding the Fourth Proportional to 478,793.52, 660,734.79 and 263,937.17

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Solution

The fourth proportional to 478,793.52, 660,734.79 and 263,937.17 is: 364,233.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,793.52 : 660,734.79 = 263,937.17 : x
  2. Step 2: Convert to fraction form
    478,793.52/660,734.79 = 263,937.17/x
  3. Step 3: Cross multiply
    478,793.52x = 660,734.79 × 263,937.17
  4. Step 4: Simplify right side
    478,793.52x = 174,392,467,289.47
  5. Step 5: Solve for x
    x = 174,392,467,289.47/478,793.52
  6. Step 6: Final answer
    x = 364,233.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.