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Finding the Fourth Proportional to 1,679,620,715.40, 2,519,431,073.10 and 1,679,620,715.40

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Solution

The fourth proportional to 1,679,620,715.40, 2,519,431,073.10 and 1,679,620,715.40 is: 2,519,431,073.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,620,715.40 : 2,519,431,073.10 = 1,679,620,715.40 : x
  2. Step 2: Convert to fraction form
    1,679,620,715.40/2,519,431,073.10 = 1,679,620,715.40/x
  3. Step 3: Cross multiply
    1,679,620,715.40x = 2,519,431,073.10 × 1,679,620,715.40
  4. Step 4: Simplify right side
    1,679,620,715.40x = 4,231,688,621,401,211,904
  5. Step 5: Solve for x
    x = 4,231,688,621,401,211,904/1,679,620,715.40
  6. Step 6: Final answer
    x = 2,519,431,073.10

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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.