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Finding the Fourth Proportional to 198,777.60, 298,329.60 and 197,222.40

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Solution

The fourth proportional to 198,777.60, 298,329.60 and 197,222.40 is: 295,995.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,777.60 : 298,329.60 = 197,222.40 : x
  2. Step 2: Convert to fraction form
    198,777.60/298,329.60 = 197,222.40/x
  3. Step 3: Cross multiply
    198,777.60x = 298,329.60 × 197,222.40
  4. Step 4: Simplify right side
    198,777.60x = 58,837,279,703.04
  5. Step 5: Solve for x
    x = 58,837,279,703.04/198,777.60
  6. Step 6: Final answer
    x = 295,995.52

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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.