Home / 1,138,306.43-1,570,801.20-628,976

Finding the Fourth Proportional to 1,138,306.43, 1,570,801.20 and 628,976

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Solution

The fourth proportional to 1,138,306.43, 1,570,801.20 and 628,976 is: 867,952.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,306.43 : 1,570,801.20 = 628,976 : x
  2. Step 2: Convert to fraction form
    1,138,306.43/1,570,801.20 = 628,976/x
  3. Step 3: Cross multiply
    1,138,306.43x = 1,570,801.20 × 628,976
  4. Step 4: Simplify right side
    1,138,306.43x = 987,996,255,571.20
  5. Step 5: Solve for x
    x = 987,996,255,571.20/1,138,306.43
  6. Step 6: Final answer
    x = 867,952.80

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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.