Home / 641,777.78-962,653.70-221,044.34

Finding the Fourth Proportional to 641,777.78, 962,653.70 and 221,044.34

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Solution

The fourth proportional to 641,777.78, 962,653.70 and 221,044.34 is: 331,562.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,777.78 : 962,653.70 = 221,044.34 : x
  2. Step 2: Convert to fraction form
    641,777.78/962,653.70 = 221,044.34/x
  3. Step 3: Cross multiply
    641,777.78x = 962,653.70 × 221,044.34
  4. Step 4: Simplify right side
    641,777.78x = 212,789,151,765.06
  5. Step 5: Solve for x
    x = 212,789,151,765.06/641,777.78
  6. Step 6: Final answer
    x = 331,562.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.