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Finding the Fourth Proportional to 5,018,978.46, 7,524,235.44 and 2,176,950.90

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Solution

The fourth proportional to 5,018,978.46, 7,524,235.44 and 2,176,950.90 is: 3,263,590.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,018,978.46 : 7,524,235.44 = 2,176,950.90 : x
  2. Step 2: Convert to fraction form
    5,018,978.46/7,524,235.44 = 2,176,950.90/x
  3. Step 3: Cross multiply
    5,018,978.46x = 7,524,235.44 × 2,176,950.90
  4. Step 4: Simplify right side
    5,018,978.46x = 16,379,891,112,919.90
  5. Step 5: Solve for x
    x = 16,379,891,112,919.90/5,018,978.46
  6. Step 6: Final answer
    x = 3,263,590.64

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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.