Home / 384,910.09-531,154.46-212,817.71

Finding the Fourth Proportional to 384,910.09, 531,154.46 and 212,817.71

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Solution

The fourth proportional to 384,910.09, 531,154.46 and 212,817.71 is: 293,676.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,910.09 : 531,154.46 = 212,817.71 : x
  2. Step 2: Convert to fraction form
    384,910.09/531,154.46 = 212,817.71/x
  3. Step 3: Cross multiply
    384,910.09x = 531,154.46 × 212,817.71
  4. Step 4: Simplify right side
    384,910.09x = 113,039,077,693.42
  5. Step 5: Solve for x
    x = 113,039,077,693.42/384,910.09
  6. Step 6: Final answer
    x = 293,676.58

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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.