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Finding the Fourth Proportional to 395,438.15, 593,258.37 and 114,955.40

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Solution

The fourth proportional to 395,438.15, 593,258.37 and 114,955.40 is: 172,462.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,438.15 : 593,258.37 = 114,955.40 : x
  2. Step 2: Convert to fraction form
    395,438.15/593,258.37 = 114,955.40/x
  3. Step 3: Cross multiply
    395,438.15x = 593,258.37 × 114,955.40
  4. Step 4: Simplify right side
    395,438.15x = 68,198,253,226.70
  5. Step 5: Solve for x
    x = 68,198,253,226.70/395,438.15
  6. Step 6: Final answer
    x = 172,462.50

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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.