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Finding the Fourth Proportional to 511,828.33, 767,714.81 and 156,843.38

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Solution

The fourth proportional to 511,828.33, 767,714.81 and 156,843.38 is: 235,256.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,828.33 : 767,714.81 = 156,843.38 : x
  2. Step 2: Convert to fraction form
    511,828.33/767,714.81 = 156,843.38/x
  3. Step 3: Cross multiply
    511,828.33x = 767,714.81 × 156,843.38
  4. Step 4: Simplify right side
    511,828.33x = 120,410,985,676.46
  5. Step 5: Solve for x
    x = 120,410,985,676.46/511,828.33
  6. Step 6: Final answer
    x = 235,256.59

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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.