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Finding the Fourth Proportional to 317,523.56, 438,180.96 and 174,286.04

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Solution

The fourth proportional to 317,523.56, 438,180.96 and 174,286.04 is: 240,513.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,523.56 : 438,180.96 = 174,286.04 : x
  2. Step 2: Convert to fraction form
    317,523.56/438,180.96 = 174,286.04/x
  3. Step 3: Cross multiply
    317,523.56x = 438,180.96 × 174,286.04
  4. Step 4: Simplify right side
    317,523.56x = 76,368,824,321.80
  5. Step 5: Solve for x
    x = 76,368,824,321.80/317,523.56
  6. Step 6: Final answer
    x = 240,513.88

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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.