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Finding the Fourth Proportional to 5,269,488.62, 7,905,069.96 and 1,858,818.38

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Solution

The fourth proportional to 5,269,488.62, 7,905,069.96 and 1,858,818.38 is: 2,788,522.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,269,488.62 : 7,905,069.96 = 1,858,818.38 : x
  2. Step 2: Convert to fraction form
    5,269,488.62/7,905,069.96 = 1,858,818.38/x
  3. Step 3: Cross multiply
    5,269,488.62x = 7,905,069.96 × 1,858,818.38
  4. Step 4: Simplify right side
    5,269,488.62x = 14,694,089,327,539.77
  5. Step 5: Solve for x
    x = 14,694,089,327,539.77/5,269,488.62
  6. Step 6: Final answer
    x = 2,788,522.83

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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.