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Finding the Fourth Proportional to 303,655.80, 455,192.10 and 236,150.40

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Solution

The fourth proportional to 303,655.80, 455,192.10 and 236,150.40 is: 353,998.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,655.80 : 455,192.10 = 236,150.40 : x
  2. Step 2: Convert to fraction form
    303,655.80/455,192.10 = 236,150.40/x
  3. Step 3: Cross multiply
    303,655.80x = 455,192.10 × 236,150.40
  4. Step 4: Simplify right side
    303,655.80x = 107,493,796,491.84
  5. Step 5: Solve for x
    x = 107,493,796,491.84/303,655.80
  6. Step 6: Final answer
    x = 353,998.83

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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.