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Finding the Fourth Proportional to 535,843.80, 739,423.81 and 294,087.96

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Solution

The fourth proportional to 535,843.80, 739,423.81 and 294,087.96 is: 405,819.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,843.80 : 739,423.81 = 294,087.96 : x
  2. Step 2: Convert to fraction form
    535,843.80/739,423.81 = 294,087.96/x
  3. Step 3: Cross multiply
    535,843.80x = 739,423.81 × 294,087.96
  4. Step 4: Simplify right side
    535,843.80x = 217,455,639,858.33
  5. Step 5: Solve for x
    x = 217,455,639,858.33/535,843.80
  6. Step 6: Final answer
    x = 405,819.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.