Home / 511,204.85-766,809.09-156,217.39

Finding the Fourth Proportional to 511,204.85, 766,809.09 and 156,217.39

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Solution

The fourth proportional to 511,204.85, 766,809.09 and 156,217.39 is: 234,326.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,204.85 : 766,809.09 = 156,217.39 : x
  2. Step 2: Convert to fraction form
    511,204.85/766,809.09 = 156,217.39/x
  3. Step 3: Cross multiply
    511,204.85x = 766,809.09 × 156,217.39
  4. Step 4: Simplify right side
    511,204.85x = 119,788,914,668.08
  5. Step 5: Solve for x
    x = 119,788,914,668.08/511,204.85
  6. Step 6: Final answer
    x = 234,326.64

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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.