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Finding the Fourth Proportional to 383,466.86, 529,160.04 and 211,375.34

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Solution

The fourth proportional to 383,466.86, 529,160.04 and 211,375.34 is: 291,684.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,466.86 : 529,160.04 = 211,375.34 : x
  2. Step 2: Convert to fraction form
    383,466.86/529,160.04 = 211,375.34/x
  3. Step 3: Cross multiply
    383,466.86x = 529,160.04 × 211,375.34
  4. Step 4: Simplify right side
    383,466.86x = 111,851,380,723.61
  5. Step 5: Solve for x
    x = 111,851,380,723.61/383,466.86
  6. Step 6: Final answer
    x = 291,684.61

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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.