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Finding the Fourth Proportional to 5,329,652.85, 7,354,978.72 and 2,882,311.46

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Solution

The fourth proportional to 5,329,652.85, 7,354,978.72 and 2,882,311.46 is: 3,977,621.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329,652.85 : 7,354,978.72 = 2,882,311.46 : x
  2. Step 2: Convert to fraction form
    5,329,652.85/7,354,978.72 = 2,882,311.46/x
  3. Step 3: Cross multiply
    5,329,652.85x = 7,354,978.72 × 2,882,311.46
  4. Step 4: Simplify right side
    5,329,652.85x = 21,199,339,463,893.80
  5. Step 5: Solve for x
    x = 21,199,339,463,893.80/5,329,652.85
  6. Step 6: Final answer
    x = 3,977,621.07

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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.