Home / 777,621.25-1,166,431.88-186,645.25

Finding the Fourth Proportional to 777,621.25, 1,166,431.88 and 186,645.25

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Solution

The fourth proportional to 777,621.25, 1,166,431.88 and 186,645.25 is: 279,967.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,621.25 : 1,166,431.88 = 186,645.25 : x
  2. Step 2: Convert to fraction form
    777,621.25/1,166,431.88 = 186,645.25/x
  3. Step 3: Cross multiply
    777,621.25x = 1,166,431.88 × 186,645.25
  4. Step 4: Simplify right side
    777,621.25x = 217,708,969,850.57
  5. Step 5: Solve for x
    x = 217,708,969,850.57/777,621.25
  6. Step 6: Final answer
    x = 279,967.88

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.