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Finding the Fourth Proportional to 484,061.76, 667,993.50 and 263,293.38

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Solution

The fourth proportional to 484,061.76, 667,993.50 and 263,293.38 is: 363,338.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,061.76 : 667,993.50 = 263,293.38 : x
  2. Step 2: Convert to fraction form
    484,061.76/667,993.50 = 263,293.38/x
  3. Step 3: Cross multiply
    484,061.76x = 667,993.50 × 263,293.38
  4. Step 4: Simplify right side
    484,061.76x = 175,878,266,433.03
  5. Step 5: Solve for x
    x = 175,878,266,433.03/484,061.76
  6. Step 6: Final answer
    x = 363,338.48

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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.