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Finding the Fourth Proportional to 395,757.18, 546,138.15 and 216,905.34

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Solution

The fourth proportional to 395,757.18, 546,138.15 and 216,905.34 is: 299,325.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,757.18 : 546,138.15 = 216,905.34 : x
  2. Step 2: Convert to fraction form
    395,757.18/546,138.15 = 216,905.34/x
  3. Step 3: Cross multiply
    395,757.18x = 546,138.15 × 216,905.34
  4. Step 4: Simplify right side
    395,757.18x = 118,460,281,112.72
  5. Step 5: Solve for x
    x = 118,460,281,112.72/395,757.18
  6. Step 6: Final answer
    x = 299,325.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.