Home / 1,223,067.60-1,687,911.31-679,203.23

Finding the Fourth Proportional to 1,223,067.60, 1,687,911.31 and 679,203.23

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Solution

The fourth proportional to 1,223,067.60, 1,687,911.31 and 679,203.23 is: 937,343.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,067.60 : 1,687,911.31 = 679,203.23 : x
  2. Step 2: Convert to fraction form
    1,223,067.60/1,687,911.31 = 679,203.23/x
  3. Step 3: Cross multiply
    1,223,067.60x = 1,687,911.31 × 679,203.23
  4. Step 4: Simplify right side
    1,223,067.60x = 1,146,434,806,114.98
  5. Step 5: Solve for x
    x = 1,146,434,806,114.98/1,223,067.60
  6. Step 6: Final answer
    x = 937,343.78

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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.