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Finding the Fourth Proportional to 3,986,805,212.20, 5,980,207,818.30 and 3,986,805,212.20

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Solution

The fourth proportional to 3,986,805,212.20, 5,980,207,818.30 and 3,986,805,212.20 is: 5,980,207,818.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,805,212.20 : 5,980,207,818.30 = 3,986,805,212.20 : x
  2. Step 2: Convert to fraction form
    3,986,805,212.20/5,980,207,818.30 = 3,986,805,212.20/x
  3. Step 3: Cross multiply
    3,986,805,212.20x = 5,980,207,818.30 × 3,986,805,212.20
  4. Step 4: Simplify right side
    3,986,805,212.20x = 23,841,923,700,037,632,000
  5. Step 5: Solve for x
    x = 23,841,923,700,037,632,000/3,986,805,212.20
  6. Step 6: Final answer
    x = 5,980,207,818.30

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1.5x scale

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.