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Finding the Fourth Proportional to 4,147,316, 6,220,974 and 995,444

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Solution

The fourth proportional to 4,147,316, 6,220,974 and 995,444 is: 1,493,166

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147,316 : 6,220,974 = 995,444 : x
  2. Step 2: Convert to fraction form
    4,147,316/6,220,974 = 995,444/x
  3. Step 3: Cross multiply
    4,147,316x = 6,220,974 × 995,444
  4. Step 4: Simplify right side
    4,147,316x = 6,192,631,242,456
  5. Step 5: Solve for x
    x = 6,192,631,242,456/4,147,316
  6. Step 6: Final answer
    x = 1,493,166

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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.