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Finding the Fourth Proportional to 6,498,700.28, 8,968,343.23 and 3,558,640.85

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Solution

The fourth proportional to 6,498,700.28, 8,968,343.23 and 3,558,640.85 is: 4,910,999.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,498,700.28 : 8,968,343.23 = 3,558,640.85 : x
  2. Step 2: Convert to fraction form
    6,498,700.28/8,968,343.23 = 3,558,640.85/x
  3. Step 3: Cross multiply
    6,498,700.28x = 8,968,343.23 × 3,558,640.85
  4. Step 4: Simplify right side
    6,498,700.28x = 31,915,112,575,098.95
  5. Step 5: Solve for x
    x = 31,915,112,575,098.95/6,498,700.28
  6. Step 6: Final answer
    x = 4,910,999.31

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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.