Home / 1,296,121.60-1,940,780.40-914,984.20

Finding the Fourth Proportional to 1,296,121.60, 1,940,780.40 and 914,984.20

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Solution

The fourth proportional to 1,296,121.60, 1,940,780.40 and 914,984.20 is: 1,370,074.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,121.60 : 1,940,780.40 = 914,984.20 : x
  2. Step 2: Convert to fraction form
    1,296,121.60/1,940,780.40 = 914,984.20/x
  3. Step 3: Cross multiply
    1,296,121.60x = 1,940,780.40 × 914,984.20
  4. Step 4: Simplify right side
    1,296,121.60x = 1,775,783,401,669.68
  5. Step 5: Solve for x
    x = 1,775,783,401,669.68/1,296,121.60
  6. Step 6: Final answer
    x = 1,370,074.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.