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Finding the Fourth Proportional to 4,147,310, 6,220,965 and 995,438

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Solution

The fourth proportional to 4,147,310, 6,220,965 and 995,438 is: 1,493,157

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147,310 : 6,220,965 = 995,438 : x
  2. Step 2: Convert to fraction form
    4,147,310/6,220,965 = 995,438/x
  3. Step 3: Cross multiply
    4,147,310x = 6,220,965 × 995,438
  4. Step 4: Simplify right side
    4,147,310x = 6,192,584,957,670
  5. Step 5: Solve for x
    x = 6,192,584,957,670/4,147,310
  6. Step 6: Final answer
    x = 1,493,157

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.