Home / 511,985.58-767,949.66-156,998.63

Finding the Fourth Proportional to 511,985.58, 767,949.66 and 156,998.63

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Solution

The fourth proportional to 511,985.58, 767,949.66 and 156,998.63 is: 235,489.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,985.58 : 767,949.66 = 156,998.63 : x
  2. Step 2: Convert to fraction form
    511,985.58/767,949.66 = 156,998.63/x
  3. Step 3: Cross multiply
    511,985.58x = 767,949.66 × 156,998.63
  4. Step 4: Simplify right side
    511,985.58x = 120,567,040,689.22
  5. Step 5: Solve for x
    x = 120,567,040,689.22/511,985.58
  6. Step 6: Final answer
    x = 235,489.13

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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.