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Finding the Fourth Proportional to 383,601.96, 529,266.85 and 218,027.63

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Solution

The fourth proportional to 383,601.96, 529,266.85 and 218,027.63 is: 300,819.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,601.96 : 529,266.85 = 218,027.63 : x
  2. Step 2: Convert to fraction form
    383,601.96/529,266.85 = 218,027.63/x
  3. Step 3: Cross multiply
    383,601.96x = 529,266.85 × 218,027.63
  4. Step 4: Simplify right side
    383,601.96x = 115,394,796,943.07
  5. Step 5: Solve for x
    x = 115,394,796,943.07/383,601.96
  6. Step 6: Final answer
    x = 300,819.10

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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.