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Finding the Fourth Proportional to 1,183,412, 1,633,108.56 and 646,868

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Solution

The fourth proportional to 1,183,412, 1,633,108.56 and 646,868 is: 892,677.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183,412 : 1,633,108.56 = 646,868 : x
  2. Step 2: Convert to fraction form
    1,183,412/1,633,108.56 = 646,868/x
  3. Step 3: Cross multiply
    1,183,412x = 1,633,108.56 × 646,868
  4. Step 4: Simplify right side
    1,183,412x = 1,056,405,667,990.08
  5. Step 5: Solve for x
    x = 1,056,405,667,990.08/1,183,412
  6. Step 6: Final answer
    x = 892,677.84

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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.