Home / 840,186.04-1,259,869.74-279,031

Finding the Fourth Proportional to 840,186.04, 1,259,869.74 and 279,031

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Solution

The fourth proportional to 840,186.04, 1,259,869.74 and 279,031 is: 418,410.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,186.04 : 1,259,869.74 = 279,031 : x
  2. Step 2: Convert to fraction form
    840,186.04/1,259,869.74 = 279,031/x
  3. Step 3: Cross multiply
    840,186.04x = 1,259,869.74 × 279,031
  4. Step 4: Simplify right side
    840,186.04x = 351,542,713,421.94
  5. Step 5: Solve for x
    x = 351,542,713,421.94/840,186.04
  6. Step 6: Final answer
    x = 418,410.56

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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.