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Finding the Fourth Proportional to 381,337.54, 526,245.87 and 211,571.26

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Solution

The fourth proportional to 381,337.54, 526,245.87 and 211,571.26 is: 291,968.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,337.54 : 526,245.87 = 211,571.26 : x
  2. Step 2: Convert to fraction form
    381,337.54/526,245.87 = 211,571.26/x
  3. Step 3: Cross multiply
    381,337.54x = 526,245.87 × 211,571.26
  4. Step 4: Simplify right side
    381,337.54x = 111,338,501,785.70
  5. Step 5: Solve for x
    x = 111,338,501,785.70/381,337.54
  6. Step 6: Final answer
    x = 291,968.37

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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.