Home / 806,111.20-1,211,791.20-571,081.60

Finding the Fourth Proportional to 806,111.20, 1,211,791.20 and 571,081.60

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Solution

The fourth proportional to 806,111.20, 1,211,791.20 and 571,081.60 is: 858,481.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,111.20 : 1,211,791.20 = 571,081.60 : x
  2. Step 2: Convert to fraction form
    806,111.20/1,211,791.20 = 571,081.60/x
  3. Step 3: Cross multiply
    806,111.20x = 1,211,791.20 × 571,081.60
  4. Step 4: Simplify right side
    806,111.20x = 692,031,657,361.92
  5. Step 5: Solve for x
    x = 692,031,657,361.92/806,111.20
  6. Step 6: Final answer
    x = 858,481.63

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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.