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Finding the Fourth Proportional to 314,969.91, 434,660.55 and 171,732.33

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Solution

The fourth proportional to 314,969.91, 434,660.55 and 171,732.33 is: 236,991.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,969.91 : 434,660.55 = 171,732.33 : x
  2. Step 2: Convert to fraction form
    314,969.91/434,660.55 = 171,732.33/x
  3. Step 3: Cross multiply
    314,969.91x = 434,660.55 × 171,732.33
  4. Step 4: Simplify right side
    314,969.91x = 74,645,269,010.58
  5. Step 5: Solve for x
    x = 74,645,269,010.58/314,969.91
  6. Step 6: Final answer
    x = 236,991.75

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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.