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Finding the Fourth Proportional to 4,978,485.09, 7,468,246.62 and 1,904,469.93

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Solution

The fourth proportional to 4,978,485.09, 7,468,246.62 and 1,904,469.93 is: 2,856,903.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,978,485.09 : 7,468,246.62 = 1,904,469.93 : x
  2. Step 2: Convert to fraction form
    4,978,485.09/7,468,246.62 = 1,904,469.93/x
  3. Step 3: Cross multiply
    4,978,485.09x = 7,468,246.62 × 1,904,469.93
  4. Step 4: Simplify right side
    4,978,485.09x = 14,223,051,117,614.14
  5. Step 5: Solve for x
    x = 14,223,051,117,614.14/4,978,485.09
  6. Step 6: Final answer
    x = 2,856,903.43

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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.