Home / 511,389.18-766,960.74-156,406.27

Finding the Fourth Proportional to 511,389.18, 766,960.74 and 156,406.27

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Solution

The fourth proportional to 511,389.18, 766,960.74 and 156,406.27 is: 234,571.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,389.18 : 766,960.74 = 156,406.27 : x
  2. Step 2: Convert to fraction form
    511,389.18/766,960.74 = 156,406.27/x
  3. Step 3: Cross multiply
    511,389.18x = 766,960.74 × 156,406.27
  4. Step 4: Simplify right side
    511,389.18x = 119,957,468,579.84
  5. Step 5: Solve for x
    x = 119,957,468,579.84/511,389.18
  6. Step 6: Final answer
    x = 234,571.78

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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.