Home / 511,811.19-767,689.05-156,826.26

Finding the Fourth Proportional to 511,811.19, 767,689.05 and 156,826.26

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Solution

The fourth proportional to 511,811.19, 767,689.05 and 156,826.26 is: 235,230.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,811.19 : 767,689.05 = 156,826.26 : x
  2. Step 2: Convert to fraction form
    511,811.19/767,689.05 = 156,826.26/x
  3. Step 3: Cross multiply
    511,811.19x = 767,689.05 × 156,826.26
  4. Step 4: Simplify right side
    511,811.19x = 120,393,802,554.45
  5. Step 5: Solve for x
    x = 120,393,802,554.45/511,811.19
  6. Step 6: Final answer
    x = 235,230.89

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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.