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Finding the Fourth Proportional to 383,596.74, 529,367.64 and 211,515.03

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Solution

The fourth proportional to 383,596.74, 529,367.64 and 211,515.03 is: 291,893.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,596.74 : 529,367.64 = 211,515.03 : x
  2. Step 2: Convert to fraction form
    383,596.74/529,367.64 = 211,515.03/x
  3. Step 3: Cross multiply
    383,596.74x = 529,367.64 × 211,515.03
  4. Step 4: Simplify right side
    383,596.74x = 111,969,212,255.63
  5. Step 5: Solve for x
    x = 111,969,212,255.63/383,596.74
  6. Step 6: Final answer
    x = 291,893.02

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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.