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Finding the Fourth Proportional to 568,785.39, 853,178.09 and 169,415.78

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Solution

The fourth proportional to 568,785.39, 853,178.09 and 169,415.78 is: 254,123.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,785.39 : 853,178.09 = 169,415.78 : x
  2. Step 2: Convert to fraction form
    568,785.39/853,178.09 = 169,415.78/x
  3. Step 3: Cross multiply
    568,785.39x = 853,178.09 × 169,415.78
  4. Step 4: Simplify right side
    568,785.39x = 144,541,831,596.26
  5. Step 5: Solve for x
    x = 144,541,831,596.26/568,785.39
  6. Step 6: Final answer
    x = 254,123.67

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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.