Home / 1,206,638.05-1,665,450.52-690,691.03

Finding the Fourth Proportional to 1,206,638.05, 1,665,450.52 and 690,691.03

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Solution

The fourth proportional to 1,206,638.05, 1,665,450.52 and 690,691.03 is: 953,319.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,638.05 : 1,665,450.52 = 690,691.03 : x
  2. Step 2: Convert to fraction form
    1,206,638.05/1,665,450.52 = 690,691.03/x
  3. Step 3: Cross multiply
    1,206,638.05x = 1,665,450.52 × 690,691.03
  4. Step 4: Simplify right side
    1,206,638.05x = 1,150,311,735,072.84
  5. Step 5: Solve for x
    x = 1,150,311,735,072.84/1,206,638.05
  6. Step 6: Final answer
    x = 953,319.63

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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.