Home / 641,999.63-962,997.21-192,718.68

Finding the Fourth Proportional to 641,999.63, 962,997.21 and 192,718.68

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Solution

The fourth proportional to 641,999.63, 962,997.21 and 192,718.68 is: 289,077.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,999.63 : 962,997.21 = 192,718.68 : x
  2. Step 2: Convert to fraction form
    641,999.63/962,997.21 = 192,718.68/x
  3. Step 3: Cross multiply
    641,999.63x = 962,997.21 × 192,718.68
  4. Step 4: Simplify right side
    641,999.63x = 185,587,551,154.88
  5. Step 5: Solve for x
    x = 185,587,551,154.88/641,999.63
  6. Step 6: Final answer
    x = 289,077.35

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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.