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Finding the Fourth Proportional to 303,522.80, 455,658.60 and 191,202.80

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Solution

The fourth proportional to 303,522.80, 455,658.60 and 191,202.80 is: 287,040.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,522.80 : 455,658.60 = 191,202.80 : x
  2. Step 2: Convert to fraction form
    303,522.80/455,658.60 = 191,202.80/x
  3. Step 3: Cross multiply
    303,522.80x = 455,658.60 × 191,202.80
  4. Step 4: Simplify right side
    303,522.80x = 87,123,200,164.08
  5. Step 5: Solve for x
    x = 87,123,200,164.08/303,522.80
  6. Step 6: Final answer
    x = 287,040.05

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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.