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Finding the Fourth Proportional to 312,165.60, 467,211.60 and 218,853.60

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Solution

The fourth proportional to 312,165.60, 467,211.60 and 218,853.60 is: 327,553.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,165.60 : 467,211.60 = 218,853.60 : x
  2. Step 2: Convert to fraction form
    312,165.60/467,211.60 = 218,853.60/x
  3. Step 3: Cross multiply
    312,165.60x = 467,211.60 × 218,853.60
  4. Step 4: Simplify right side
    312,165.60x = 102,250,940,621.76
  5. Step 5: Solve for x
    x = 102,250,940,621.76/312,165.60
  6. Step 6: Final answer
    x = 327,553.52

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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.