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Finding the Fourth Proportional to 316,481.34, 436,744.80 and 173,241.48

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Solution

The fourth proportional to 316,481.34, 436,744.80 and 173,241.48 is: 239,073.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,481.34 : 436,744.80 = 173,241.48 : x
  2. Step 2: Convert to fraction form
    316,481.34/436,744.80 = 173,241.48/x
  3. Step 3: Cross multiply
    316,481.34x = 436,744.80 × 173,241.48
  4. Step 4: Simplify right side
    316,481.34x = 75,662,315,534.30
  5. Step 5: Solve for x
    x = 75,662,315,534.30/316,481.34
  6. Step 6: Final answer
    x = 239,073.54

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1.5x scale

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.