Home / 863,619.15-1,191,796.40-481,670.54

Finding the Fourth Proportional to 863,619.15, 1,191,796.40 and 481,670.54

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Solution

The fourth proportional to 863,619.15, 1,191,796.40 and 481,670.54 is: 664,706.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,619.15 : 1,191,796.40 = 481,670.54 : x
  2. Step 2: Convert to fraction form
    863,619.15/1,191,796.40 = 481,670.54/x
  3. Step 3: Cross multiply
    863,619.15x = 1,191,796.40 × 481,670.54
  4. Step 4: Simplify right side
    863,619.15x = 574,053,215,558.06
  5. Step 5: Solve for x
    x = 574,053,215,558.06/863,619.15
  6. Step 6: Final answer
    x = 664,706.45

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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.