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Finding the Fourth Proportional to 3,296,978.20, 4,941,530.70 and 1,377,885.70

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Solution

The fourth proportional to 3,296,978.20, 4,941,530.70 and 1,377,885.70 is: 2,065,183.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,296,978.20 : 4,941,530.70 = 1,377,885.70 : x
  2. Step 2: Convert to fraction form
    3,296,978.20/4,941,530.70 = 1,377,885.70/x
  3. Step 3: Cross multiply
    3,296,978.20x = 4,941,530.70 × 1,377,885.70
  4. Step 4: Simplify right side
    3,296,978.20x = 6,808,864,487,640.99
  5. Step 5: Solve for x
    x = 6,808,864,487,640.99/3,296,978.20
  6. Step 6: Final answer
    x = 2,065,183.35

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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.