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Finding the Fourth Proportional to 5,788,756.98, 7,987,205.43 and 3,340,847.88

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Solution

The fourth proportional to 5,788,756.98, 7,987,205.43 and 3,340,847.88 is: 4,609,631.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,788,756.98 : 7,987,205.43 = 3,340,847.88 : x
  2. Step 2: Convert to fraction form
    5,788,756.98/7,987,205.43 = 3,340,847.88/x
  3. Step 3: Cross multiply
    5,788,756.98x = 7,987,205.43 × 3,340,847.88
  4. Step 4: Simplify right side
    5,788,756.98x = 26,684,038,327,939.99
  5. Step 5: Solve for x
    x = 26,684,038,327,939.99/5,788,756.98
  6. Step 6: Final answer
    x = 4,609,631.81

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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.