Home / 1,238,476.88-1,707,370.44-830,651.60

Finding the Fourth Proportional to 1,238,476.88, 1,707,370.44 and 830,651.60

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Solution

The fourth proportional to 1,238,476.88, 1,707,370.44 and 830,651.60 is: 1,145,140.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,476.88 : 1,707,370.44 = 830,651.60 : x
  2. Step 2: Convert to fraction form
    1,238,476.88/1,707,370.44 = 830,651.60/x
  3. Step 3: Cross multiply
    1,238,476.88x = 1,707,370.44 × 830,651.60
  4. Step 4: Simplify right side
    1,238,476.88x = 1,418,229,987,778.70
  5. Step 5: Solve for x
    x = 1,418,229,987,778.70/1,238,476.88
  6. Step 6: Final answer
    x = 1,145,140.46

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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.