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Finding the Fourth Proportional to 327,707.60, 492,079.80 and 239,579.60

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Solution

The fourth proportional to 327,707.60, 492,079.80 and 239,579.60 is: 359,748.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,707.60 : 492,079.80 = 239,579.60 : x
  2. Step 2: Convert to fraction form
    327,707.60/492,079.80 = 239,579.60/x
  3. Step 3: Cross multiply
    327,707.60x = 492,079.80 × 239,579.60
  4. Step 4: Simplify right side
    327,707.60x = 117,892,281,652.08
  5. Step 5: Solve for x
    x = 117,892,281,652.08/327,707.60
  6. Step 6: Final answer
    x = 359,748.39

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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.