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Finding the Fourth Proportional to 1,361,785, 1,879,321.62 and 758,173

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Solution

The fourth proportional to 1,361,785, 1,879,321.62 and 758,173 is: 1,046,311.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,785 : 1,879,321.62 = 758,173 : x
  2. Step 2: Convert to fraction form
    1,361,785/1,879,321.62 = 758,173/x
  3. Step 3: Cross multiply
    1,361,785x = 1,879,321.62 × 758,173
  4. Step 4: Simplify right side
    1,361,785x = 1,424,850,910,600.26
  5. Step 5: Solve for x
    x = 1,424,850,910,600.26/1,361,785
  6. Step 6: Final answer
    x = 1,046,311.21

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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.