Home / 1,205,765.80-1,663,913.75-682,465.19

Finding the Fourth Proportional to 1,205,765.80, 1,663,913.75 and 682,465.19

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Solution

The fourth proportional to 1,205,765.80, 1,663,913.75 and 682,465.19 is: 941,777.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,765.80 : 1,663,913.75 = 682,465.19 : x
  2. Step 2: Convert to fraction form
    1,205,765.80/1,663,913.75 = 682,465.19/x
  3. Step 3: Cross multiply
    1,205,765.80x = 1,663,913.75 × 682,465.19
  4. Step 4: Simplify right side
    1,205,765.80x = 1,135,563,201,805.47
  5. Step 5: Solve for x
    x = 1,135,563,201,805.47/1,205,765.80
  6. Step 6: Final answer
    x = 941,777.59

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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.