Home / 384,817.15-531,044.21-212,739.49

Finding the Fourth Proportional to 384,817.15, 531,044.21 and 212,739.49

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Solution

The fourth proportional to 384,817.15, 531,044.21 and 212,739.49 is: 293,578.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,817.15 : 531,044.21 = 212,739.49 : x
  2. Step 2: Convert to fraction form
    384,817.15/531,044.21 = 212,739.49/x
  3. Step 3: Cross multiply
    384,817.15x = 531,044.21 × 212,739.49
  4. Step 4: Simplify right side
    384,817.15x = 112,974,076,418.37
  5. Step 5: Solve for x
    x = 112,974,076,418.37/384,817.15
  6. Step 6: Final answer
    x = 293,578.59

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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.