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Finding the Fourth Proportional to 423,467.60, 635,662.20 and 236,843.60

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Solution

The fourth proportional to 423,467.60, 635,662.20 and 236,843.60 is: 355,523.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,467.60 : 635,662.20 = 236,843.60 : x
  2. Step 2: Convert to fraction form
    423,467.60/635,662.20 = 236,843.60/x
  3. Step 3: Cross multiply
    423,467.60x = 635,662.20 × 236,843.60
  4. Step 4: Simplify right side
    423,467.60x = 150,552,523,831.92
  5. Step 5: Solve for x
    x = 150,552,523,831.92/423,467.60
  6. Step 6: Final answer
    x = 355,523.12

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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.