Home / 1,638,474.59-2,261,316.27-993,790.73

Finding the Fourth Proportional to 1,638,474.59, 2,261,316.27 and 993,790.73

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Solution

The fourth proportional to 1,638,474.59, 2,261,316.27 and 993,790.73 is: 1,371,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,474.59 : 2,261,316.27 = 993,790.73 : x
  2. Step 2: Convert to fraction form
    1,638,474.59/2,261,316.27 = 993,790.73/x
  3. Step 3: Cross multiply
    1,638,474.59x = 2,261,316.27 × 993,790.73
  4. Step 4: Simplify right side
    1,638,474.59x = 2,247,275,147,408.51
  5. Step 5: Solve for x
    x = 2,247,275,147,408.51/1,638,474.59
  6. Step 6: Final answer
    x = 1,371,565.45

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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.