Home / 691,326.20-1,036,989.30-192,690.20

Finding the Fourth Proportional to 691,326.20, 1,036,989.30 and 192,690.20

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Solution

The fourth proportional to 691,326.20, 1,036,989.30 and 192,690.20 is: 289,035.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,326.20 : 1,036,989.30 = 192,690.20 : x
  2. Step 2: Convert to fraction form
    691,326.20/1,036,989.30 = 192,690.20/x
  3. Step 3: Cross multiply
    691,326.20x = 1,036,989.30 × 192,690.20
  4. Step 4: Simplify right side
    691,326.20x = 199,817,675,614.86
  5. Step 5: Solve for x
    x = 199,817,675,614.86/691,326.20
  6. Step 6: Final answer
    x = 289,035.30

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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.