Home / 1,276,819.40-1,911,850.19-770,703.86

Finding the Fourth Proportional to 1,276,819.40, 1,911,850.19 and 770,703.86

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Solution

The fourth proportional to 1,276,819.40, 1,911,850.19 and 770,703.86 is: 1,154,016.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,819.40 : 1,911,850.19 = 770,703.86 : x
  2. Step 2: Convert to fraction form
    1,276,819.40/1,911,850.19 = 770,703.86/x
  3. Step 3: Cross multiply
    1,276,819.40x = 1,911,850.19 × 770,703.86
  4. Step 4: Simplify right side
    1,276,819.40x = 1,473,470,324,990.98
  5. Step 5: Solve for x
    x = 1,473,470,324,990.98/1,276,819.40
  6. Step 6: Final answer
    x = 1,154,016.24

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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.