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Finding the Fourth Proportional to 526,786.64, 790,305.71 and 171,801

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Solution

The fourth proportional to 526,786.64, 790,305.71 and 171,801 is: 257,742.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,786.64 : 790,305.71 = 171,801 : x
  2. Step 2: Convert to fraction form
    526,786.64/790,305.71 = 171,801/x
  3. Step 3: Cross multiply
    526,786.64x = 790,305.71 × 171,801
  4. Step 4: Simplify right side
    526,786.64x = 135,775,311,391.09
  5. Step 5: Solve for x
    x = 135,775,311,391.09/526,786.64
  6. Step 6: Final answer
    x = 257,742.51

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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.