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Finding the Fourth Proportional to 303,698.46, 455,549.31 and 199,179.30

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Solution

The fourth proportional to 303,698.46, 455,549.31 and 199,179.30 is: 298,770.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,698.46 : 455,549.31 = 199,179.30 : x
  2. Step 2: Convert to fraction form
    303,698.46/455,549.31 = 199,179.30/x
  3. Step 3: Cross multiply
    303,698.46x = 455,549.31 × 199,179.30
  4. Step 4: Simplify right side
    303,698.46x = 90,735,992,681.28
  5. Step 5: Solve for x
    x = 90,735,992,681.28/303,698.46
  6. Step 6: Final answer
    x = 298,770.01

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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.