Home / 691,111.07-1,036,596.55-185,606.38

Finding the Fourth Proportional to 691,111.07, 1,036,596.55 and 185,606.38

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Solution

The fourth proportional to 691,111.07, 1,036,596.55 and 185,606.38 is: 278,390.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,111.07 : 1,036,596.55 = 185,606.38 : x
  2. Step 2: Convert to fraction form
    691,111.07/1,036,596.55 = 185,606.38/x
  3. Step 3: Cross multiply
    691,111.07x = 1,036,596.55 × 185,606.38
  4. Step 4: Simplify right side
    691,111.07x = 192,398,933,165.99
  5. Step 5: Solve for x
    x = 192,398,933,165.99/691,111.07
  6. Step 6: Final answer
    x = 278,390.76

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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.