Home / 1,993,816.56-2,991,196.26-645,976.98

Finding the Fourth Proportional to 1,993,816.56, 2,991,196.26 and 645,976.98

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Solution

The fourth proportional to 1,993,816.56, 2,991,196.26 and 645,976.98 is: 969,118.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,816.56 : 2,991,196.26 = 645,976.98 : x
  2. Step 2: Convert to fraction form
    1,993,816.56/2,991,196.26 = 645,976.98/x
  3. Step 3: Cross multiply
    1,993,816.56x = 2,991,196.26 × 645,976.98
  4. Step 4: Simplify right side
    1,993,816.56x = 1,932,243,926,622.09
  5. Step 5: Solve for x
    x = 1,932,243,926,622.09/1,993,816.56
  6. Step 6: Final answer
    x = 969,118.21

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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.