Home / 511,977.27-767,393.43-191,821.12

Finding the Fourth Proportional to 511,977.27, 767,393.43 and 191,821.12

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Solution

The fourth proportional to 511,977.27, 767,393.43 and 191,821.12 is: 287,517.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,977.27 : 767,393.43 = 191,821.12 : x
  2. Step 2: Convert to fraction form
    511,977.27/767,393.43 = 191,821.12/x
  3. Step 3: Cross multiply
    511,977.27x = 767,393.43 × 191,821.12
  4. Step 4: Simplify right side
    511,977.27x = 147,202,267,223.24
  5. Step 5: Solve for x
    x = 147,202,267,223.24/511,977.27
  6. Step 6: Final answer
    x = 287,517.19

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1.5x scale

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.