Home / 1,149,972.80-1,586,964.12-640,693.04

Finding the Fourth Proportional to 1,149,972.80, 1,586,964.12 and 640,693.04

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Solution

The fourth proportional to 1,149,972.80, 1,586,964.12 and 640,693.04 is: 884,157.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,972.80 : 1,586,964.12 = 640,693.04 : x
  2. Step 2: Convert to fraction form
    1,149,972.80/1,586,964.12 = 640,693.04/x
  3. Step 3: Cross multiply
    1,149,972.80x = 1,586,964.12 × 640,693.04
  4. Step 4: Simplify right side
    1,149,972.80x = 1,016,756,866,413.73
  5. Step 5: Solve for x
    x = 1,016,756,866,413.73/1,149,972.80
  6. Step 6: Final answer
    x = 884,157.32

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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.