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Finding the Third Proportional to 679,716,630 and 1,049,601,439.13

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Solution

The third proportional to 679,716,630 and 1,049,601,439.13 is: 1,620,768,320.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,716,630 : 1,049,601,439.13 = 1,049,601,439.13 : x
  2. Step 2: Convert to fraction form
    679,716,630/1,049,601,439.13 = 1,049,601,439.13/x
  3. Step 3: Cross multiply
    679,716,630x = 1,049,601,439.13 × 1,049,601,439.13
  4. Step 4: Simplify right side
    679,716,630x = 1,101,663,181,013,271,040
  5. Step 5: Solve for x
    x = 1,101,663,181,013,271,040/679,716,630
  6. Step 6: Final answer
    x = 1,620,768,320.78

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.