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Finding the Fourth Proportional to 303,940.30, 455,502.88 and 236,553.70

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Solution

The fourth proportional to 303,940.30, 455,502.88 and 236,553.70 is: 354,513.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,940.30 : 455,502.88 = 236,553.70 : x
  2. Step 2: Convert to fraction form
    303,940.30/455,502.88 = 236,553.70/x
  3. Step 3: Cross multiply
    303,940.30x = 455,502.88 × 236,553.70
  4. Step 4: Simplify right side
    303,940.30x = 107,750,891,624.66
  5. Step 5: Solve for x
    x = 107,750,891,624.66/303,940.30
  6. Step 6: Final answer
    x = 354,513.34

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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.