Home / 394,669.84-544,633.32-215,818

Finding the Fourth Proportional to 394,669.84, 544,633.32 and 215,818

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Solution

The fourth proportional to 394,669.84, 544,633.32 and 215,818 is: 297,822.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,669.84 : 544,633.32 = 215,818 : x
  2. Step 2: Convert to fraction form
    394,669.84/544,633.32 = 215,818/x
  3. Step 3: Cross multiply
    394,669.84x = 544,633.32 × 215,818
  4. Step 4: Simplify right side
    394,669.84x = 117,541,673,855.76
  5. Step 5: Solve for x
    x = 117,541,673,855.76/394,669.84
  6. Step 6: Final answer
    x = 297,822.79

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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.