Home / 1,221,666.77-1,685,843.03-677,796.77

Finding the Fourth Proportional to 1,221,666.77, 1,685,843.03 and 677,796.77

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Solution

The fourth proportional to 1,221,666.77, 1,685,843.03 and 677,796.77 is: 935,327.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,666.77 : 1,685,843.03 = 677,796.77 : x
  2. Step 2: Convert to fraction form
    1,221,666.77/1,685,843.03 = 677,796.77/x
  3. Step 3: Cross multiply
    1,221,666.77x = 1,685,843.03 × 677,796.77
  4. Step 4: Simplify right side
    1,221,666.77x = 1,142,658,957,072.03
  5. Step 5: Solve for x
    x = 1,142,658,957,072.03/1,221,666.77
  6. Step 6: Final answer
    x = 935,327.85

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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.