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Finding the Fourth Proportional to 2,720,121,290.70, 3,815,425,748.10 and 2,720,121,290.70

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Solution

The fourth proportional to 2,720,121,290.70, 3,815,425,748.10 and 2,720,121,290.70 is: 3,815,425,748.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720,121,290.70 : 3,815,425,748.10 = 2,720,121,290.70 : x
  2. Step 2: Convert to fraction form
    2,720,121,290.70/3,815,425,748.10 = 2,720,121,290.70/x
  3. Step 3: Cross multiply
    2,720,121,290.70x = 3,815,425,748.10 × 2,720,121,290.70
  4. Step 4: Simplify right side
    2,720,121,290.70x = 10,378,420,810,491,783,168
  5. Step 5: Solve for x
    x = 10,378,420,810,491,783,168/2,720,121,290.70
  6. Step 6: Final answer
    x = 3,815,425,748.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.