Home / 919,577.17-1,269,016.49-511,705.28

Finding the Fourth Proportional to 919,577.17, 1,269,016.49 and 511,705.28

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Solution

The fourth proportional to 919,577.17, 1,269,016.49 and 511,705.28 is: 706,153.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,577.17 : 1,269,016.49 = 511,705.28 : x
  2. Step 2: Convert to fraction form
    919,577.17/1,269,016.49 = 511,705.28/x
  3. Step 3: Cross multiply
    919,577.17x = 1,269,016.49 × 511,705.28
  4. Step 4: Simplify right side
    919,577.17x = 649,362,446,318.24
  5. Step 5: Solve for x
    x = 649,362,446,318.24/919,577.17
  6. Step 6: Final answer
    x = 706,153.29

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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.