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Finding the Fourth Proportional to 6,488,814.88, 9,739,072.40 and 3,458,704.48

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Solution

The fourth proportional to 6,488,814.88, 9,739,072.40 and 3,458,704.48 is: 5,191,174.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,488,814.88 : 9,739,072.40 = 3,458,704.48 : x
  2. Step 2: Convert to fraction form
    6,488,814.88/9,739,072.40 = 3,458,704.48/x
  3. Step 3: Cross multiply
    6,488,814.88x = 9,739,072.40 × 3,458,704.48
  4. Step 4: Simplify right side
    6,488,814.88x = 33,684,573,340,924.35
  5. Step 5: Solve for x
    x = 33,684,573,340,924.35/6,488,814.88
  6. Step 6: Final answer
    x = 5,191,174.96

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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.