Home / 919,834.38-1,269,358.79-511,936.15

Finding the Fourth Proportional to 919,834.38, 1,269,358.79 and 511,936.15

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Solution

The fourth proportional to 919,834.38, 1,269,358.79 and 511,936.15 is: 706,464.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,834.38 : 1,269,358.79 = 511,936.15 : x
  2. Step 2: Convert to fraction form
    919,834.38/1,269,358.79 = 511,936.15/x
  3. Step 3: Cross multiply
    919,834.38x = 1,269,358.79 × 511,936.15
  4. Step 4: Simplify right side
    919,834.38x = 649,830,651,921.26
  5. Step 5: Solve for x
    x = 649,830,651,921.26/919,834.38
  6. Step 6: Final answer
    x = 706,464.84

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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.