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Finding the Fourth Proportional to 423,608.58, 635,535.86 and 170,758.58

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Solution

The fourth proportional to 423,608.58, 635,535.86 and 170,758.58 is: 256,187.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,608.58 : 635,535.86 = 170,758.58 : x
  2. Step 2: Convert to fraction form
    423,608.58/635,535.86 = 170,758.58/x
  3. Step 3: Cross multiply
    423,608.58x = 635,535.86 × 170,758.58
  4. Step 4: Simplify right side
    423,608.58x = 108,523,196,961.21
  5. Step 5: Solve for x
    x = 108,523,196,961.21/423,608.58
  6. Step 6: Final answer
    x = 256,187.44

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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.