Home / 919,843.46-1,269,425.79-511,971.44

Finding the Fourth Proportional to 919,843.46, 1,269,425.79 and 511,971.44

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Solution

The fourth proportional to 919,843.46, 1,269,425.79 and 511,971.44 is: 706,543.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,843.46 : 1,269,425.79 = 511,971.44 : x
  2. Step 2: Convert to fraction form
    919,843.46/1,269,425.79 = 511,971.44/x
  3. Step 3: Cross multiply
    919,843.46x = 1,269,425.79 × 511,971.44
  4. Step 4: Simplify right side
    919,843.46x = 649,909,743,332.31
  5. Step 5: Solve for x
    x = 649,909,743,332.31/919,843.46
  6. Step 6: Final answer
    x = 706,543.85

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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.