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Finding the Fourth Proportional to 444,603, 613,552.18 and 243,399

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Solution

The fourth proportional to 444,603, 613,552.18 and 243,399 is: 335,890.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,603 : 613,552.18 = 243,399 : x
  2. Step 2: Convert to fraction form
    444,603/613,552.18 = 243,399/x
  3. Step 3: Cross multiply
    444,603x = 613,552.18 × 243,399
  4. Step 4: Simplify right side
    444,603x = 149,337,987,059.82
  5. Step 5: Solve for x
    x = 149,337,987,059.82/444,603
  6. Step 6: Final answer
    x = 335,890.64

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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.