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Finding the Fourth Proportional to 366,058.48, 505,221.16 and 251,242.80

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Solution

The fourth proportional to 366,058.48, 505,221.16 and 251,242.80 is: 346,756.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,058.48 : 505,221.16 = 251,242.80 : x
  2. Step 2: Convert to fraction form
    366,058.48/505,221.16 = 251,242.80/x
  3. Step 3: Cross multiply
    366,058.48x = 505,221.16 × 251,242.80
  4. Step 4: Simplify right side
    366,058.48x = 126,933,178,857.65
  5. Step 5: Solve for x
    x = 126,933,178,857.65/366,058.48
  6. Step 6: Final answer
    x = 346,756.56

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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.