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Finding the Fourth Proportional to 353,144.40, 529,716.60 and 220,174.80

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Solution

The fourth proportional to 353,144.40, 529,716.60 and 220,174.80 is: 330,262.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,144.40 : 529,716.60 = 220,174.80 : x
  2. Step 2: Convert to fraction form
    353,144.40/529,716.60 = 220,174.80/x
  3. Step 3: Cross multiply
    353,144.40x = 529,716.60 × 220,174.80
  4. Step 4: Simplify right side
    353,144.40x = 116,630,246,461.68
  5. Step 5: Solve for x
    x = 116,630,246,461.68/353,144.40
  6. Step 6: Final answer
    x = 330,262.20

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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.