Home / 1,409,755.80-1,945,410.88-765,162.25

Finding the Fourth Proportional to 1,409,755.80, 1,945,410.88 and 765,162.25

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Solution

The fourth proportional to 1,409,755.80, 1,945,410.88 and 765,162.25 is: 1,055,895.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,755.80 : 1,945,410.88 = 765,162.25 : x
  2. Step 2: Convert to fraction form
    1,409,755.80/1,945,410.88 = 765,162.25/x
  3. Step 3: Cross multiply
    1,409,755.80x = 1,945,410.88 × 765,162.25
  4. Step 4: Simplify right side
    1,409,755.80x = 1,488,554,966,634.14
  5. Step 5: Solve for x
    x = 1,488,554,966,634.14/1,409,755.80
  6. Step 6: Final answer
    x = 1,055,895.62

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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.