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Finding the Fourth Proportional to 505,838.80, 758,809.20 and 164,267.92

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Solution

The fourth proportional to 505,838.80, 758,809.20 and 164,267.92 is: 246,418.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,838.80 : 758,809.20 = 164,267.92 : x
  2. Step 2: Convert to fraction form
    505,838.80/758,809.20 = 164,267.92/x
  3. Step 3: Cross multiply
    505,838.80x = 758,809.20 × 164,267.92
  4. Step 4: Simplify right side
    505,838.80x = 124,648,008,960.86
  5. Step 5: Solve for x
    x = 124,648,008,960.86/505,838.80
  6. Step 6: Final answer
    x = 246,418.44

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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.