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Finding the Fourth Proportional to 366,782.74, 505,695.09 and 262,131.79

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Solution

The fourth proportional to 366,782.74, 505,695.09 and 262,131.79 is: 361,409.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,782.74 : 505,695.09 = 262,131.79 : x
  2. Step 2: Convert to fraction form
    366,782.74/505,695.09 = 262,131.79/x
  3. Step 3: Cross multiply
    366,782.74x = 505,695.09 × 262,131.79
  4. Step 4: Simplify right side
    366,782.74x = 132,558,759,135.91
  5. Step 5: Solve for x
    x = 132,558,759,135.91/366,782.74
  6. Step 6: Final answer
    x = 361,409.48

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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.