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Finding the Fourth Proportional to 438,898.81, 605,729.67 and 247,924.51

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Solution

The fourth proportional to 438,898.81, 605,729.67 and 247,924.51 is: 342,163.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,898.81 : 605,729.67 = 247,924.51 : x
  2. Step 2: Convert to fraction form
    438,898.81/605,729.67 = 247,924.51/x
  3. Step 3: Cross multiply
    438,898.81x = 605,729.67 × 247,924.51
  4. Step 4: Simplify right side
    438,898.81x = 150,175,231,627.21
  5. Step 5: Solve for x
    x = 150,175,231,627.21/438,898.81
  6. Step 6: Final answer
    x = 342,163.68

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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.