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Finding the Fourth Proportional to 568,832.78, 853,093.64 and 213,819.50

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Solution

The fourth proportional to 568,832.78, 853,093.64 and 213,819.50 is: 320,670.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,832.78 : 853,093.64 = 213,819.50 : x
  2. Step 2: Convert to fraction form
    568,832.78/853,093.64 = 213,819.50/x
  3. Step 3: Cross multiply
    568,832.78x = 853,093.64 × 213,819.50
  4. Step 4: Simplify right side
    568,832.78x = 182,408,051,827.06
  5. Step 5: Solve for x
    x = 182,408,051,827.06/568,832.78
  6. Step 6: Final answer
    x = 320,670.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.