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Finding the Fourth Proportional to 383,958.50, 529,797.12 and 222,776.60

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Solution

The fourth proportional to 383,958.50, 529,797.12 and 222,776.60 is: 307,393.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,958.50 : 529,797.12 = 222,776.60 : x
  2. Step 2: Convert to fraction form
    383,958.50/529,797.12 = 222,776.60/x
  3. Step 3: Cross multiply
    383,958.50x = 529,797.12 × 222,776.60
  4. Step 4: Simplify right side
    383,958.50x = 118,026,401,083.39
  5. Step 5: Solve for x
    x = 118,026,401,083.39/383,958.50
  6. Step 6: Final answer
    x = 307,393.64

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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.