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Finding the Fourth Proportional to 383,536.89, 529,304.63 and 211,454.01

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Solution

The fourth proportional to 383,536.89, 529,304.63 and 211,454.01 is: 291,819.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,536.89 : 529,304.63 = 211,454.01 : x
  2. Step 2: Convert to fraction form
    383,536.89/529,304.63 = 211,454.01/x
  3. Step 3: Cross multiply
    383,536.89x = 529,304.63 × 211,454.01
  4. Step 4: Simplify right side
    383,536.89x = 111,923,585,467.80
  5. Step 5: Solve for x
    x = 111,923,585,467.80/383,536.89
  6. Step 6: Final answer
    x = 291,819.61

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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.