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Finding the Fourth Proportional to 395,813.55, 593,705.75 and 171,230.52

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Solution

The fourth proportional to 395,813.55, 593,705.75 and 171,230.52 is: 256,839.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,813.55 : 593,705.75 = 171,230.52 : x
  2. Step 2: Convert to fraction form
    395,813.55/593,705.75 = 171,230.52/x
  3. Step 3: Cross multiply
    395,813.55x = 593,705.75 × 171,230.52
  4. Step 4: Simplify right side
    395,813.55x = 101,660,543,443.34
  5. Step 5: Solve for x
    x = 101,660,543,443.34/395,813.55
  6. Step 6: Final answer
    x = 256,839.47

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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.