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Finding the Fourth Proportional to 327,763.60, 491,480.74 and 191,030.72

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Solution

The fourth proportional to 327,763.60, 491,480.74 and 191,030.72 is: 286,450.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,763.60 : 491,480.74 = 191,030.72 : x
  2. Step 2: Convert to fraction form
    327,763.60/491,480.74 = 191,030.72/x
  3. Step 3: Cross multiply
    327,763.60x = 491,480.74 × 191,030.72
  4. Step 4: Simplify right side
    327,763.60x = 93,887,919,628.33
  5. Step 5: Solve for x
    x = 93,887,919,628.33/327,763.60
  6. Step 6: Final answer
    x = 286,450.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.