Home / 1,277,987.13-1,763,627.20-697,223.31

Finding the Fourth Proportional to 1,277,987.13, 1,763,627.20 and 697,223.31

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Solution

The fourth proportional to 1,277,987.13, 1,763,627.20 and 697,223.31 is: 962,170.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,987.13 : 1,763,627.20 = 697,223.31 : x
  2. Step 2: Convert to fraction form
    1,277,987.13/1,763,627.20 = 697,223.31/x
  3. Step 3: Cross multiply
    1,277,987.13x = 1,763,627.20 × 697,223.31
  4. Step 4: Simplify right side
    1,277,987.13x = 1,229,641,981,685.78
  5. Step 5: Solve for x
    x = 1,229,641,981,685.78/1,277,987.13
  6. Step 6: Final answer
    x = 962,170.86

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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.