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Finding the Fourth Proportional to 422,388.50, 633,582.36 and 169,669.04

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Solution

The fourth proportional to 422,388.50, 633,582.36 and 169,669.04 is: 254,503.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,388.50 : 633,582.36 = 169,669.04 : x
  2. Step 2: Convert to fraction form
    422,388.50/633,582.36 = 169,669.04/x
  3. Step 3: Cross multiply
    422,388.50x = 633,582.36 × 169,669.04
  4. Step 4: Simplify right side
    422,388.50x = 107,499,307,614.22
  5. Step 5: Solve for x
    x = 107,499,307,614.22/422,388.50
  6. Step 6: Final answer
    x = 254,503.40

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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.