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Finding the Fourth Proportional to 327,869.20, 491,803.80 and 325,536.40

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Solution

The fourth proportional to 327,869.20, 491,803.80 and 325,536.40 is: 488,304.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,869.20 : 491,803.80 = 325,536.40 : x
  2. Step 2: Convert to fraction form
    327,869.20/491,803.80 = 325,536.40/x
  3. Step 3: Cross multiply
    327,869.20x = 491,803.80 × 325,536.40
  4. Step 4: Simplify right side
    327,869.20x = 160,100,038,558.32
  5. Step 5: Solve for x
    x = 160,100,038,558.32/327,869.20
  6. Step 6: Final answer
    x = 488,304.60

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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.