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Finding the Fourth Proportional to 6,396,603.21, 8,827,291.10 and 3,495,993.21

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Solution

The fourth proportional to 6,396,603.21, 8,827,291.10 and 3,495,993.21 is: 4,824,458.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,396,603.21 : 8,827,291.10 = 3,495,993.21 : x
  2. Step 2: Convert to fraction form
    6,396,603.21/8,827,291.10 = 3,495,993.21/x
  3. Step 3: Cross multiply
    6,396,603.21x = 8,827,291.10 × 3,495,993.21
  4. Step 4: Simplify right side
    6,396,603.21x = 30,860,149,757,033.41
  5. Step 5: Solve for x
    x = 30,860,149,757,033.41/6,396,603.21
  6. Step 6: Final answer
    x = 4,824,458.97

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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.