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Finding the Fourth Proportional to 383,515.91, 529,270.08 and 213,751.25

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Solution

The fourth proportional to 383,515.91, 529,270.08 and 213,751.25 is: 294,986.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,515.91 : 529,270.08 = 213,751.25 : x
  2. Step 2: Convert to fraction form
    383,515.91/529,270.08 = 213,751.25/x
  3. Step 3: Cross multiply
    383,515.91x = 529,270.08 × 213,751.25
  4. Step 4: Simplify right side
    383,515.91x = 113,132,141,187.60
  5. Step 5: Solve for x
    x = 113,132,141,187.60/383,515.91
  6. Step 6: Final answer
    x = 294,986.83

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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.