Home / 511,977.02-767,393.06-191,820.87

Finding the Fourth Proportional to 511,977.02, 767,393.06 and 191,820.87

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Solution

The fourth proportional to 511,977.02, 767,393.06 and 191,820.87 is: 287,516.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,977.02 : 767,393.06 = 191,820.87 : x
  2. Step 2: Convert to fraction form
    511,977.02/767,393.06 = 191,820.87/x
  3. Step 3: Cross multiply
    511,977.02x = 767,393.06 × 191,820.87
  4. Step 4: Simplify right side
    511,977.02x = 147,202,003,442.06
  5. Step 5: Solve for x
    x = 147,202,003,442.06/511,977.02
  6. Step 6: Final answer
    x = 287,516.82

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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.