Home / 681,741.89-942,504.41-511,680.77

Finding the Fourth Proportional to 681,741.89, 942,504.41 and 511,680.77

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Solution

The fourth proportional to 681,741.89, 942,504.41 and 511,680.77 is: 707,395.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,741.89 : 942,504.41 = 511,680.77 : x
  2. Step 2: Convert to fraction form
    681,741.89/942,504.41 = 511,680.77/x
  3. Step 3: Cross multiply
    681,741.89x = 942,504.41 × 511,680.77
  4. Step 4: Simplify right side
    681,741.89x = 482,261,378,803.88
  5. Step 5: Solve for x
    x = 482,261,378,803.88/681,741.89
  6. Step 6: Final answer
    x = 707,395.85

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Double scale
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1.5x scale

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.