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Finding the Fourth Proportional to 1,193,535, 1,647,078.30 and 656,991

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Solution

The fourth proportional to 1,193,535, 1,647,078.30 and 656,991 is: 906,647.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193,535 : 1,647,078.30 = 656,991 : x
  2. Step 2: Convert to fraction form
    1,193,535/1,647,078.30 = 656,991/x
  3. Step 3: Cross multiply
    1,193,535x = 1,647,078.30 × 656,991
  4. Step 4: Simplify right side
    1,193,535x = 1,082,115,619,395.30
  5. Step 5: Solve for x
    x = 1,082,115,619,395.30/1,193,535
  6. Step 6: Final answer
    x = 906,647.58

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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.