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Finding the Fourth Proportional to 568,905.19, 853,390.55 and 213,922.29

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Solution

The fourth proportional to 568,905.19, 853,390.55 and 213,922.29 is: 320,895.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,905.19 : 853,390.55 = 213,922.29 : x
  2. Step 2: Convert to fraction form
    568,905.19/853,390.55 = 213,922.29/x
  3. Step 3: Cross multiply
    568,905.19x = 853,390.55 × 213,922.29
  4. Step 4: Simplify right side
    568,905.19x = 182,559,260,720.36
  5. Step 5: Solve for x
    x = 182,559,260,720.36/568,905.19
  6. Step 6: Final answer
    x = 320,895.76

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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.