Home / 1,221,573.80-1,685,782.01-677,745.25

Finding the Fourth Proportional to 1,221,573.80, 1,685,782.01 and 677,745.25

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Solution

The fourth proportional to 1,221,573.80, 1,685,782.01 and 677,745.25 is: 935,294.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,573.80 : 1,685,782.01 = 677,745.25 : x
  2. Step 2: Convert to fraction form
    1,221,573.80/1,685,782.01 = 677,745.25/x
  3. Step 3: Cross multiply
    1,221,573.80x = 1,685,782.01 × 677,745.25
  4. Step 4: Simplify right side
    1,221,573.80x = 1,142,530,749,812.95
  5. Step 5: Solve for x
    x = 1,142,530,749,812.95/1,221,573.80
  6. Step 6: Final answer
    x = 935,294.09

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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.