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Finding the Fourth Proportional to 383,346.75, 529,022.13 and 211,270.92

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Solution

The fourth proportional to 383,346.75, 529,022.13 and 211,270.92 is: 291,555.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,346.75 : 529,022.13 = 211,270.92 : x
  2. Step 2: Convert to fraction form
    383,346.75/529,022.13 = 211,270.92/x
  3. Step 3: Cross multiply
    383,346.75x = 529,022.13 × 211,270.92
  4. Step 4: Simplify right side
    383,346.75x = 111,766,992,601.03
  5. Step 5: Solve for x
    x = 111,766,992,601.03/383,346.75
  6. Step 6: Final answer
    x = 291,555.86

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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.