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Finding the Fourth Proportional to 1,010,779, 1,393,213.86 and 716,529

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Solution

The fourth proportional to 1,010,779, 1,393,213.86 and 716,529 is: 987,632.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,779 : 1,393,213.86 = 716,529 : x
  2. Step 2: Convert to fraction form
    1,010,779/1,393,213.86 = 716,529/x
  3. Step 3: Cross multiply
    1,010,779x = 1,393,213.86 × 716,529
  4. Step 4: Simplify right side
    1,010,779x = 998,278,133,891.94
  5. Step 5: Solve for x
    x = 998,278,133,891.94/1,010,779
  6. Step 6: Final answer
    x = 987,632.44

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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.