Home / 919,714.40-1,269,196.71-511,809.26

Finding the Fourth Proportional to 919,714.40, 1,269,196.71 and 511,809.26

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Solution

The fourth proportional to 919,714.40, 1,269,196.71 and 511,809.26 is: 706,291.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,714.40 : 1,269,196.71 = 511,809.26 : x
  2. Step 2: Convert to fraction form
    919,714.40/1,269,196.71 = 511,809.26/x
  3. Step 3: Cross multiply
    919,714.40x = 1,269,196.71 × 511,809.26
  4. Step 4: Simplify right side
    919,714.40x = 649,586,628,939.54
  5. Step 5: Solve for x
    x = 649,586,628,939.54/919,714.40
  6. Step 6: Final answer
    x = 706,291.68

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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.