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Finding the Fourth Proportional to 383,842.76, 529,703.94 and 214,087.88

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Solution

The fourth proportional to 383,842.76, 529,703.94 and 214,087.88 is: 295,441.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,842.76 : 529,703.94 = 214,087.88 : x
  2. Step 2: Convert to fraction form
    383,842.76/529,703.94 = 214,087.88/x
  3. Step 3: Cross multiply
    383,842.76x = 529,703.94 × 214,087.88
  4. Step 4: Simplify right side
    383,842.76x = 113,403,193,542.25
  5. Step 5: Solve for x
    x = 113,403,193,542.25/383,842.76
  6. Step 6: Final answer
    x = 295,441.79

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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.