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Finding the Fourth Proportional to 579,085.82, 868,415.24 and 199,910.06

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Solution

The fourth proportional to 579,085.82, 868,415.24 and 199,910.06 is: 299,791.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,085.82 : 868,415.24 = 199,910.06 : x
  2. Step 2: Convert to fraction form
    579,085.82/868,415.24 = 199,910.06/x
  3. Step 3: Cross multiply
    579,085.82x = 868,415.24 × 199,910.06
  4. Step 4: Simplify right side
    579,085.82x = 173,604,942,733.31
  5. Step 5: Solve for x
    x = 173,604,942,733.31/579,085.82
  6. Step 6: Final answer
    x = 299,791.39

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Double scale
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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.