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Finding the Fourth Proportional to 320,840.76, 481,727.70 and 236,859.96

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Solution

The fourth proportional to 320,840.76, 481,727.70 and 236,859.96 is: 355,634.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,840.76 : 481,727.70 = 236,859.96 : x
  2. Step 2: Convert to fraction form
    320,840.76/481,727.70 = 236,859.96/x
  3. Step 3: Cross multiply
    320,840.76x = 481,727.70 × 236,859.96
  4. Step 4: Simplify right side
    320,840.76x = 114,102,003,752.89
  5. Step 5: Solve for x
    x = 114,102,003,752.89/320,840.76
  6. Step 6: Final answer
    x = 355,634.38

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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.