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Finding the Fourth Proportional to 568,782.39, 853,173.59 and 169,412.78

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Solution

The fourth proportional to 568,782.39, 853,173.59 and 169,412.78 is: 254,119.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,782.39 : 853,173.59 = 169,412.78 : x
  2. Step 2: Convert to fraction form
    568,782.39/853,173.59 = 169,412.78/x
  3. Step 3: Cross multiply
    568,782.39x = 853,173.59 × 169,412.78
  4. Step 4: Simplify right side
    568,782.39x = 144,538,509,704.48
  5. Step 5: Solve for x
    x = 144,538,509,704.48/568,782.39
  6. Step 6: Final answer
    x = 254,119.17

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Similar ratio
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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.