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Finding the Fourth Proportional to 1,855,682.43, 2,560,904.78 and 1,770,651.87

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Solution

The fourth proportional to 1,855,682.43, 2,560,904.78 and 1,770,651.87 is: 2,443,559.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855,682.43 : 2,560,904.78 = 1,770,651.87 : x
  2. Step 2: Convert to fraction form
    1,855,682.43/2,560,904.78 = 1,770,651.87/x
  3. Step 3: Cross multiply
    1,855,682.43x = 2,560,904.78 × 1,770,651.87
  4. Step 4: Simplify right side
    1,855,682.43x = 4,534,470,837,598.94
  5. Step 5: Solve for x
    x = 4,534,470,837,598.94/1,855,682.43
  6. Step 6: Final answer
    x = 2,443,559.72

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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.