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Finding the Fourth Proportional to 329,338.69, 492,654.76 and 262,908.56

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Solution

The fourth proportional to 329,338.69, 492,654.76 and 262,908.56 is: 393,282.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,338.69 : 492,654.76 = 262,908.56 : x
  2. Step 2: Convert to fraction form
    329,338.69/492,654.76 = 262,908.56/x
  3. Step 3: Cross multiply
    329,338.69x = 492,654.76 × 262,908.56
  4. Step 4: Simplify right side
    329,338.69x = 129,523,153,528.75
  5. Step 5: Solve for x
    x = 129,523,153,528.75/329,338.69
  6. Step 6: Final answer
    x = 393,282.53

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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.