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Finding the Fourth Proportional to 259,697,582,564.40, 389,546,373,846.60 and 259,697,582,564.40

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Solution

The fourth proportional to 259,697,582,564.40, 389,546,373,846.60 and 259,697,582,564.40 is: 389,546,373,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,697,582,564.40 : 389,546,373,846.60 = 259,697,582,564.40 : x
  2. Step 2: Convert to fraction form
    259,697,582,564.40/389,546,373,846.60 = 259,697,582,564.40/x
  3. Step 3: Cross multiply
    259,697,582,564.40x = 389,546,373,846.60 × 259,697,582,564.40
  4. Step 4: Simplify right side
    259,697,582,564.40x = 101,164,251,584,690,024,087,552
  5. Step 5: Solve for x
    x = 101,164,251,584,690,024,087,552/259,697,582,564.40
  6. Step 6: Final answer
    x = 389,546,373,846.60

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Double scale
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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.