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Finding the Fourth Proportional to 793,964.82, 1,093,668.02 and 640,573.77

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Solution

The fourth proportional to 793,964.82, 1,093,668.02 and 640,573.77 is: 882,375.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    793,964.82 : 1,093,668.02 = 640,573.77 : x
  2. Step 2: Convert to fraction form
    793,964.82/1,093,668.02 = 640,573.77/x
  3. Step 3: Cross multiply
    793,964.82x = 1,093,668.02 × 640,573.77
  4. Step 4: Simplify right side
    793,964.82x = 700,575,043,496.97
  5. Step 5: Solve for x
    x = 700,575,043,496.97/793,964.82
  6. Step 6: Final answer
    x = 882,375.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.