Home / 1,992,432-2,749,556.80-1,277,040

Finding the Fourth Proportional to 1,992,432, 2,749,556.80 and 1,277,040

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Solution

The fourth proportional to 1,992,432, 2,749,556.80 and 1,277,040 is: 1,762,315.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,432 : 2,749,556.80 = 1,277,040 : x
  2. Step 2: Convert to fraction form
    1,992,432/2,749,556.80 = 1,277,040/x
  3. Step 3: Cross multiply
    1,992,432x = 2,749,556.80 × 1,277,040
  4. Step 4: Simplify right side
    1,992,432x = 3,511,294,015,872
  5. Step 5: Solve for x
    x = 3,511,294,015,872/1,992,432
  6. Step 6: Final answer
    x = 1,762,315.61

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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.