Home / 389,814.87-537,953.34-228,786.06

Finding the Fourth Proportional to 389,814.87, 537,953.34 and 228,786.06

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Solution

The fourth proportional to 389,814.87, 537,953.34 and 228,786.06 is: 315,729.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,814.87 : 537,953.34 = 228,786.06 : x
  2. Step 2: Convert to fraction form
    389,814.87/537,953.34 = 228,786.06/x
  3. Step 3: Cross multiply
    389,814.87x = 537,953.34 × 228,786.06
  4. Step 4: Simplify right side
    389,814.87x = 123,076,225,122.44
  5. Step 5: Solve for x
    x = 123,076,225,122.44/389,814.87
  6. Step 6: Final answer
    x = 315,729.94

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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.