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Finding the Fourth Proportional to 368,479.02, 508,524.22 and 223,297.51

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Solution

The fourth proportional to 368,479.02, 508,524.22 and 223,297.51 is: 308,164.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,479.02 : 508,524.22 = 223,297.51 : x
  2. Step 2: Convert to fraction form
    368,479.02/508,524.22 = 223,297.51/x
  3. Step 3: Cross multiply
    368,479.02x = 508,524.22 × 223,297.51
  4. Step 4: Simplify right side
    368,479.02x = 113,552,192,100.69
  5. Step 5: Solve for x
    x = 113,552,192,100.69/368,479.02
  6. Step 6: Final answer
    x = 308,164.61

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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.