Home / 691,166.80-1,036,680.12-185,662.11

Finding the Fourth Proportional to 691,166.80, 1,036,680.12 and 185,662.11

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Solution

The fourth proportional to 691,166.80, 1,036,680.12 and 185,662.11 is: 278,474.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,166.80 : 1,036,680.12 = 185,662.11 : x
  2. Step 2: Convert to fraction form
    691,166.80/1,036,680.12 = 185,662.11/x
  3. Step 3: Cross multiply
    691,166.80x = 1,036,680.12 × 185,662.11
  4. Step 4: Simplify right side
    691,166.80x = 192,472,218,474.25
  5. Step 5: Solve for x
    x = 192,472,218,474.25/691,166.80
  6. Step 6: Final answer
    x = 278,474.34

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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.