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Finding the Fourth Proportional to 297,987.12, 410,940.27 and 190,370.34

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Solution

The fourth proportional to 297,987.12, 410,940.27 and 190,370.34 is: 262,530.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,987.12 : 410,940.27 = 190,370.34 : x
  2. Step 2: Convert to fraction form
    297,987.12/410,940.27 = 190,370.34/x
  3. Step 3: Cross multiply
    297,987.12x = 410,940.27 × 190,370.34
  4. Step 4: Simplify right side
    297,987.12x = 78,230,838,919.59
  5. Step 5: Solve for x
    x = 78,230,838,919.59/297,987.12
  6. Step 6: Final answer
    x = 262,530.94

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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.