Home / 1,228,805.96-1,695,759.90-684,976.28

Finding the Fourth Proportional to 1,228,805.96, 1,695,759.90 and 684,976.28

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Solution

The fourth proportional to 1,228,805.96, 1,695,759.90 and 684,976.28 is: 945,271.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,805.96 : 1,695,759.90 = 684,976.28 : x
  2. Step 2: Convert to fraction form
    1,228,805.96/1,695,759.90 = 684,976.28/x
  3. Step 3: Cross multiply
    1,228,805.96x = 1,695,759.90 × 684,976.28
  4. Step 4: Simplify right side
    1,228,805.96x = 1,161,555,308,075.17
  5. Step 5: Solve for x
    x = 1,161,555,308,075.17/1,228,805.96
  6. Step 6: Final answer
    x = 945,271.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.