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Finding the Fourth Proportional to 303,465.70, 455,198.55 and 203,932.90

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Solution

The fourth proportional to 303,465.70, 455,198.55 and 203,932.90 is: 305,899.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,465.70 : 455,198.55 = 203,932.90 : x
  2. Step 2: Convert to fraction form
    303,465.70/455,198.55 = 203,932.90/x
  3. Step 3: Cross multiply
    303,465.70x = 455,198.55 × 203,932.90
  4. Step 4: Simplify right side
    303,465.70x = 92,829,960,377.30
  5. Step 5: Solve for x
    x = 92,829,960,377.30/303,465.70
  6. Step 6: Final answer
    x = 305,899.35

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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.