Home / 1,206,639.80-1,665,452.93-690,692.78

Finding the Fourth Proportional to 1,206,639.80, 1,665,452.93 and 690,692.78

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Solution

The fourth proportional to 1,206,639.80, 1,665,452.93 and 690,692.78 is: 953,322.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,639.80 : 1,665,452.93 = 690,692.78 : x
  2. Step 2: Convert to fraction form
    1,206,639.80/1,665,452.93 = 690,692.78/x
  3. Step 3: Cross multiply
    1,206,639.80x = 1,665,452.93 × 690,692.78
  4. Step 4: Simplify right side
    1,206,639.80x = 1,150,316,314,180.85
  5. Step 5: Solve for x
    x = 1,150,316,314,180.85/1,206,639.80
  6. Step 6: Final answer
    x = 953,322.04

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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.