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Finding the Fourth Proportional to 366,905.20, 550,357.80 and 316,166.80

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Solution

The fourth proportional to 366,905.20, 550,357.80 and 316,166.80 is: 474,250.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,905.20 : 550,357.80 = 316,166.80 : x
  2. Step 2: Convert to fraction form
    366,905.20/550,357.80 = 316,166.80/x
  3. Step 3: Cross multiply
    366,905.20x = 550,357.80 × 316,166.80
  4. Step 4: Simplify right side
    366,905.20x = 174,004,864,481.04
  5. Step 5: Solve for x
    x = 174,004,864,481.04/366,905.20
  6. Step 6: Final answer
    x = 474,250.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.