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Finding the Fourth Proportional to 6,456,578.77, 8,910,481.68 and 3,555,968.91

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Solution

The fourth proportional to 6,456,578.77, 8,910,481.68 and 3,555,968.91 is: 4,907,459.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,456,578.77 : 8,910,481.68 = 3,555,968.91 : x
  2. Step 2: Convert to fraction form
    6,456,578.77/8,910,481.68 = 3,555,968.91/x
  3. Step 3: Cross multiply
    6,456,578.77x = 8,910,481.68 × 3,555,968.91
  4. Step 4: Simplify right side
    6,456,578.77x = 31,685,395,827,204.57
  5. Step 5: Solve for x
    x = 31,685,395,827,204.57/6,456,578.77
  6. Step 6: Final answer
    x = 4,907,459.04

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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.