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Finding the Fourth Proportional to 395,705.28, 593,492.70 and 111,415.52

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Solution

The fourth proportional to 395,705.28, 593,492.70 and 111,415.52 is: 167,104.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,705.28 : 593,492.70 = 111,415.52 : x
  2. Step 2: Convert to fraction form
    395,705.28/593,492.70 = 111,415.52/x
  3. Step 3: Cross multiply
    395,705.28x = 593,492.70 × 111,415.52
  4. Step 4: Simplify right side
    395,705.28x = 66,124,297,786.70
  5. Step 5: Solve for x
    x = 66,124,297,786.70/395,705.28
  6. Step 6: Final answer
    x = 167,104.92

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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.