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Finding the Fourth Proportional to 368,308.35, 508,260.42 and 207,163.51

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Solution

The fourth proportional to 368,308.35, 508,260.42 and 207,163.51 is: 285,882.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,308.35 : 508,260.42 = 207,163.51 : x
  2. Step 2: Convert to fraction form
    368,308.35/508,260.42 = 207,163.51/x
  3. Step 3: Cross multiply
    368,308.35x = 508,260.42 × 207,163.51
  4. Step 4: Simplify right side
    368,308.35x = 105,293,011,330.62
  5. Step 5: Solve for x
    x = 105,293,011,330.62/368,308.35
  6. Step 6: Final answer
    x = 285,882.77

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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.