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Finding the Fourth Proportional to 327,697.60, 492,064.80 and 239,569.60

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Solution

The fourth proportional to 327,697.60, 492,064.80 and 239,569.60 is: 359,733.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,697.60 : 492,064.80 = 239,569.60 : x
  2. Step 2: Convert to fraction form
    327,697.60/492,064.80 = 239,569.60/x
  3. Step 3: Cross multiply
    327,697.60x = 492,064.80 × 239,569.60
  4. Step 4: Simplify right side
    327,697.60x = 117,883,767,310.08
  5. Step 5: Solve for x
    x = 117,883,767,310.08/327,697.60
  6. Step 6: Final answer
    x = 359,733.39

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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.