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Finding the Fourth Proportional to 417,847.50, 627,020.31 and 151,628.79

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Solution

The fourth proportional to 417,847.50, 627,020.31 and 151,628.79 is: 227,533.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,847.50 : 627,020.31 = 151,628.79 : x
  2. Step 2: Convert to fraction form
    417,847.50/627,020.31 = 151,628.79/x
  3. Step 3: Cross multiply
    417,847.50x = 627,020.31 × 151,628.79
  4. Step 4: Simplify right side
    417,847.50x = 95,074,330,910.72
  5. Step 5: Solve for x
    x = 95,074,330,910.72/417,847.50
  6. Step 6: Final answer
    x = 227,533.56

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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.