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Finding the Fourth Proportional to 1,008,991, 1,392,410.46 and 550,110.52

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Solution

The fourth proportional to 1,008,991, 1,392,410.46 and 550,110.52 is: 759,154.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,991 : 1,392,410.46 = 550,110.52 : x
  2. Step 2: Convert to fraction form
    1,008,991/1,392,410.46 = 550,110.52/x
  3. Step 3: Cross multiply
    1,008,991x = 1,392,410.46 × 550,110.52
  4. Step 4: Simplify right side
    1,008,991x = 765,979,642,204.04
  5. Step 5: Solve for x
    x = 765,979,642,204.04/1,008,991
  6. Step 6: Final answer
    x = 759,154.09

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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.