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Finding the Fourth Proportional to 662,608.80, 993,921.84 and 189,309.60

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Solution

The fourth proportional to 662,608.80, 993,921.84 and 189,309.60 is: 283,966.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,608.80 : 993,921.84 = 189,309.60 : x
  2. Step 2: Convert to fraction form
    662,608.80/993,921.84 = 189,309.60/x
  3. Step 3: Cross multiply
    662,608.80x = 993,921.84 × 189,309.60
  4. Step 4: Simplify right side
    662,608.80x = 188,158,945,961.66
  5. Step 5: Solve for x
    x = 188,158,945,961.66/662,608.80
  6. Step 6: Final answer
    x = 283,966.87

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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.