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Finding the Fourth Proportional to 300,999.60, 415,383.44 and 165,033.24

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Solution

The fourth proportional to 300,999.60, 415,383.44 and 165,033.24 is: 227,748.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,999.60 : 415,383.44 = 165,033.24 : x
  2. Step 2: Convert to fraction form
    300,999.60/415,383.44 = 165,033.24/x
  3. Step 3: Cross multiply
    300,999.60x = 415,383.44 × 165,033.24
  4. Step 4: Simplify right side
    300,999.60x = 68,552,074,945.55
  5. Step 5: Solve for x
    x = 68,552,074,945.55/300,999.60
  6. Step 6: Final answer
    x = 227,748.06

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1.5x scale

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.