Home / 1,290,551.56-1,936,221.18-659,908.36

Finding the Fourth Proportional to 1,290,551.56, 1,936,221.18 and 659,908.36

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Solution

The fourth proportional to 1,290,551.56, 1,936,221.18 and 659,908.36 is: 990,063.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,551.56 : 1,936,221.18 = 659,908.36 : x
  2. Step 2: Convert to fraction form
    1,290,551.56/1,936,221.18 = 659,908.36/x
  3. Step 3: Cross multiply
    1,290,551.56x = 1,936,221.18 × 659,908.36
  4. Step 4: Simplify right side
    1,290,551.56x = 1,277,728,543,491.06
  5. Step 5: Solve for x
    x = 1,277,728,543,491.06/1,290,551.56
  6. Step 6: Final answer
    x = 990,063.93

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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.