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Finding the Fourth Proportional to 660,067,042.60, 990,100,563.90 and 660,067,042.60

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Solution

The fourth proportional to 660,067,042.60, 990,100,563.90 and 660,067,042.60 is: 990,100,563.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,067,042.60 : 990,100,563.90 = 660,067,042.60 : x
  2. Step 2: Convert to fraction form
    660,067,042.60/990,100,563.90 = 660,067,042.60/x
  3. Step 3: Cross multiply
    660,067,042.60x = 990,100,563.90 × 660,067,042.60
  4. Step 4: Simplify right side
    660,067,042.60x = 653,532,751,090,065,280
  5. Step 5: Solve for x
    x = 653,532,751,090,065,280/660,067,042.60
  6. Step 6: Final answer
    x = 990,100,563.90

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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.