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Finding the Fourth Proportional to 568,790.68, 853,188.35 and 142,325.34

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Solution

The fourth proportional to 568,790.68, 853,188.35 and 142,325.34 is: 213,488.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,790.68 : 853,188.35 = 142,325.34 : x
  2. Step 2: Convert to fraction form
    568,790.68/853,188.35 = 142,325.34/x
  3. Step 3: Cross multiply
    568,790.68x = 853,188.35 × 142,325.34
  4. Step 4: Simplify right side
    568,790.68x = 121,430,324,486.57
  5. Step 5: Solve for x
    x = 121,430,324,486.57/568,790.68
  6. Step 6: Final answer
    x = 213,488.60

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Similar ratio
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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.