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Finding the Fourth Proportional to 667,272.60, 1,000,908.90 and 667,272.60

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Solution

The fourth proportional to 667,272.60, 1,000,908.90 and 667,272.60 is: 1,000,908.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,272.60 : 1,000,908.90 = 667,272.60 : x
  2. Step 2: Convert to fraction form
    667,272.60/1,000,908.90 = 667,272.60/x
  3. Step 3: Cross multiply
    667,272.60x = 1,000,908.90 × 667,272.60
  4. Step 4: Simplify right side
    667,272.60x = 667,879,084,066.14
  5. Step 5: Solve for x
    x = 667,879,084,066.14/667,272.60
  6. Step 6: Final answer
    x = 1,000,908.90

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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.