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Finding the Fourth Proportional to 2,856,950.86, 3,942,651.63 and 1,567,715.98

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Solution

The fourth proportional to 2,856,950.86, 3,942,651.63 and 1,567,715.98 is: 2,163,480.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856,950.86 : 3,942,651.63 = 1,567,715.98 : x
  2. Step 2: Convert to fraction form
    2,856,950.86/3,942,651.63 = 1,567,715.98/x
  3. Step 3: Cross multiply
    2,856,950.86x = 3,942,651.63 × 1,567,715.98
  4. Step 4: Simplify right side
    2,856,950.86x = 6,180,957,963,924.05
  5. Step 5: Solve for x
    x = 6,180,957,963,924.05/2,856,950.86
  6. Step 6: Final answer
    x = 2,163,480.67

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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.