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Finding the Fourth Proportional to 1,183,608, 1,633,379.04 and 647,064

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Solution

The fourth proportional to 1,183,608, 1,633,379.04 and 647,064 is: 892,948.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183,608 : 1,633,379.04 = 647,064 : x
  2. Step 2: Convert to fraction form
    1,183,608/1,633,379.04 = 647,064/x
  3. Step 3: Cross multiply
    1,183,608x = 1,633,379.04 × 647,064
  4. Step 4: Simplify right side
    1,183,608x = 1,056,900,775,138.56
  5. Step 5: Solve for x
    x = 1,056,900,775,138.56/1,183,608
  6. Step 6: Final answer
    x = 892,948.32

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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.