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Finding the Fourth Proportional to 303,933.60, 455,244.30 and 197,645.40

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Solution

The fourth proportional to 303,933.60, 455,244.30 and 197,645.40 is: 296,041.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,933.60 : 455,244.30 = 197,645.40 : x
  2. Step 2: Convert to fraction form
    303,933.60/455,244.30 = 197,645.40/x
  3. Step 3: Cross multiply
    303,933.60x = 455,244.30 × 197,645.40
  4. Step 4: Simplify right side
    303,933.60x = 89,976,941,771.22
  5. Step 5: Solve for x
    x = 89,976,941,771.22/303,933.60
  6. Step 6: Final answer
    x = 296,041.44

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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.