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Finding the Fourth Proportional to 2,243,716, 3,365,574 and 667,780

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Solution

The fourth proportional to 2,243,716, 3,365,574 and 667,780 is: 1,001,670

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,243,716 : 3,365,574 = 667,780 : x
  2. Step 2: Convert to fraction form
    2,243,716/3,365,574 = 667,780/x
  3. Step 3: Cross multiply
    2,243,716x = 3,365,574 × 667,780
  4. Step 4: Simplify right side
    2,243,716x = 2,247,463,005,720
  5. Step 5: Solve for x
    x = 2,247,463,005,720/2,243,716
  6. Step 6: Final answer
    x = 1,001,670

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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.