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Finding the Fourth Proportional to 990,099,773.40, 1,485,149,660.10 and 990,099,773.40

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Solution

The fourth proportional to 990,099,773.40, 1,485,149,660.10 and 990,099,773.40 is: 1,485,149,660.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,099,773.40 : 1,485,149,660.10 = 990,099,773.40 : x
  2. Step 2: Convert to fraction form
    990,099,773.40/1,485,149,660.10 = 990,099,773.40/x
  3. Step 3: Cross multiply
    990,099,773.40x = 1,485,149,660.10 × 990,099,773.40
  4. Step 4: Simplify right side
    990,099,773.40x = 1,470,446,341,930,096,896
  5. Step 5: Solve for x
    x = 1,470,446,341,930,096,896/990,099,773.40
  6. Step 6: Final answer
    x = 1,485,149,660.10

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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.