Home / 511,964.23-767,858.85-137,899.75

Finding the Fourth Proportional to 511,964.23, 767,858.85 and 137,899.75

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Solution

The fourth proportional to 511,964.23, 767,858.85 and 137,899.75 is: 206,826.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,964.23 : 767,858.85 = 137,899.75 : x
  2. Step 2: Convert to fraction form
    511,964.23/767,858.85 = 137,899.75/x
  3. Step 3: Cross multiply
    511,964.23x = 767,858.85 × 137,899.75
  4. Step 4: Simplify right side
    511,964.23x = 105,887,543,450.29
  5. Step 5: Solve for x
    x = 105,887,543,450.29/511,964.23
  6. Step 6: Final answer
    x = 206,826.06

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1.5x scale

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.