Home / 927,218.88-1,279,546.56-519,317.28

Finding the Fourth Proportional to 927,218.88, 1,279,546.56 and 519,317.28

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Solution

The fourth proportional to 927,218.88, 1,279,546.56 and 519,317.28 is: 716,649.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,218.88 : 1,279,546.56 = 519,317.28 : x
  2. Step 2: Convert to fraction form
    927,218.88/1,279,546.56 = 519,317.28/x
  3. Step 3: Cross multiply
    927,218.88x = 1,279,546.56 × 519,317.28
  4. Step 4: Simplify right side
    927,218.88x = 664,490,639,172.56
  5. Step 5: Solve for x
    x = 664,490,639,172.56/927,218.88
  6. Step 6: Final answer
    x = 716,649.17

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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.