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Finding the Fourth Proportional to 5,114,978.08, 7,672,464.96 and 1,520,729.44

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Solution

The fourth proportional to 5,114,978.08, 7,672,464.96 and 1,520,729.44 is: 2,281,093.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,114,978.08 : 7,672,464.96 = 1,520,729.44 : x
  2. Step 2: Convert to fraction form
    5,114,978.08/7,672,464.96 = 1,520,729.44/x
  3. Step 3: Cross multiply
    5,114,978.08x = 7,672,464.96 × 1,520,729.44
  4. Step 4: Simplify right side
    5,114,978.08x = 11,667,743,342,040.42
  5. Step 5: Solve for x
    x = 11,667,743,342,040.42/5,114,978.08
  6. Step 6: Final answer
    x = 2,281,093.52

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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.