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Finding the Fourth Proportional to 6,403,896.26, 8,837,446.60 and 3,503,224.86

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Solution

The fourth proportional to 6,403,896.26, 8,837,446.60 and 3,503,224.86 is: 4,834,488.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,403,896.26 : 8,837,446.60 = 3,503,224.86 : x
  2. Step 2: Convert to fraction form
    6,403,896.26/8,837,446.60 = 3,503,224.86/x
  3. Step 3: Cross multiply
    6,403,896.26x = 8,837,446.60 × 3,503,224.86
  4. Step 4: Simplify right side
    6,403,896.26x = 30,959,562,628,042.47
  5. Step 5: Solve for x
    x = 30,959,562,628,042.47/6,403,896.26
  6. Step 6: Final answer
    x = 4,834,488.47

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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.