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Finding the Fourth Proportional to 288,504.76, 397,736.22 and 248,643.04

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Solution

The fourth proportional to 288,504.76, 397,736.22 and 248,643.04 is: 342,782.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,504.76 : 397,736.22 = 248,643.04 : x
  2. Step 2: Convert to fraction form
    288,504.76/397,736.22 = 248,643.04/x
  3. Step 3: Cross multiply
    288,504.76x = 397,736.22 × 248,643.04
  4. Step 4: Simplify right side
    288,504.76x = 98,894,342,858.91
  5. Step 5: Solve for x
    x = 98,894,342,858.91/288,504.76
  6. Step 6: Final answer
    x = 342,782.36

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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.