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Finding the Fourth Proportional to 413,963.52, 620,503.20 and 236,087.52

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Solution

The fourth proportional to 413,963.52, 620,503.20 and 236,087.52 is: 353,879.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,963.52 : 620,503.20 = 236,087.52 : x
  2. Step 2: Convert to fraction form
    413,963.52/620,503.20 = 236,087.52/x
  3. Step 3: Cross multiply
    413,963.52x = 620,503.20 × 236,087.52
  4. Step 4: Simplify right side
    413,963.52x = 146,493,061,640.06
  5. Step 5: Solve for x
    x = 146,493,061,640.06/413,963.52
  6. Step 6: Final answer
    x = 353,879.16

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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.