Home / 2,777,312.80-4,165,969.20-782,768.80

Finding the Fourth Proportional to 2,777,312.80, 4,165,969.20 and 782,768.80

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Solution

The fourth proportional to 2,777,312.80, 4,165,969.20 and 782,768.80 is: 1,174,153.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777,312.80 : 4,165,969.20 = 782,768.80 : x
  2. Step 2: Convert to fraction form
    2,777,312.80/4,165,969.20 = 782,768.80/x
  3. Step 3: Cross multiply
    2,777,312.80x = 4,165,969.20 × 782,768.80
  4. Step 4: Simplify right side
    2,777,312.80x = 3,260,990,711,520.96
  5. Step 5: Solve for x
    x = 3,260,990,711,520.96/2,777,312.80
  6. Step 6: Final answer
    x = 1,174,153.20

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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.