Home / 1,166,578.61-1,609,974.30-643,391.56

Finding the Fourth Proportional to 1,166,578.61, 1,609,974.30 and 643,391.56

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Solution

The fourth proportional to 1,166,578.61, 1,609,974.30 and 643,391.56 is: 887,933.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166,578.61 : 1,609,974.30 = 643,391.56 : x
  2. Step 2: Convert to fraction form
    1,166,578.61/1,609,974.30 = 643,391.56/x
  3. Step 3: Cross multiply
    1,166,578.61x = 1,609,974.30 × 643,391.56
  4. Step 4: Simplify right side
    1,166,578.61x = 1,035,843,876,436.91
  5. Step 5: Solve for x
    x = 1,035,843,876,436.91/1,166,578.61
  6. Step 6: Final answer
    x = 887,933.20

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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.