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Finding the Fourth Proportional to 999,892.44, 1,380,495.42 and 892,277.46

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Solution

The fourth proportional to 999,892.44, 1,380,495.42 and 892,277.46 is: 1,231,917.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,892.44 : 1,380,495.42 = 892,277.46 : x
  2. Step 2: Convert to fraction form
    999,892.44/1,380,495.42 = 892,277.46/x
  3. Step 3: Cross multiply
    999,892.44x = 1,380,495.42 × 892,277.46
  4. Step 4: Simplify right side
    999,892.44x = 1,231,784,946,899.23
  5. Step 5: Solve for x
    x = 1,231,784,946,899.23/999,892.44
  6. Step 6: Final answer
    x = 1,231,917.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.