Home / 2,181,866.65-3,273,315.15-685,958.65

Finding the Fourth Proportional to 2,181,866.65, 3,273,315.15 and 685,958.65

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Solution

The fourth proportional to 2,181,866.65, 3,273,315.15 and 685,958.65 is: 1,029,099.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181,866.65 : 3,273,315.15 = 685,958.65 : x
  2. Step 2: Convert to fraction form
    2,181,866.65/3,273,315.15 = 685,958.65/x
  3. Step 3: Cross multiply
    2,181,866.65x = 3,273,315.15 × 685,958.65
  4. Step 4: Simplify right side
    2,181,866.65x = 2,245,358,841,318.55
  5. Step 5: Solve for x
    x = 2,245,358,841,318.55/2,181,866.65
  6. Step 6: Final answer
    x = 1,029,099.94

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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.