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Finding the Fourth Proportional to 1,926,556.88, 2,658,648.49 and 1,067,172.80

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Solution

The fourth proportional to 1,926,556.88, 2,658,648.49 and 1,067,172.80 is: 1,472,698.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926,556.88 : 2,658,648.49 = 1,067,172.80 : x
  2. Step 2: Convert to fraction form
    1,926,556.88/2,658,648.49 = 1,067,172.80/x
  3. Step 3: Cross multiply
    1,926,556.88x = 2,658,648.49 × 1,067,172.80
  4. Step 4: Simplify right side
    1,926,556.88x = 2,837,237,337,327.90
  5. Step 5: Solve for x
    x = 2,837,237,337,327.90/1,926,556.88
  6. Step 6: Final answer
    x = 1,472,698.46

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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.