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Finding the Fourth Proportional to 275,953.67, 380,847.64 and 153,458.27

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Solution

The fourth proportional to 275,953.67, 380,847.64 and 153,458.27 is: 211,789.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,953.67 : 380,847.64 = 153,458.27 : x
  2. Step 2: Convert to fraction form
    275,953.67/380,847.64 = 153,458.27/x
  3. Step 3: Cross multiply
    275,953.67x = 380,847.64 × 153,458.27
  4. Step 4: Simplify right side
    275,953.67x = 58,444,219,967.98
  5. Step 5: Solve for x
    x = 58,444,219,967.98/275,953.67
  6. Step 6: Final answer
    x = 211,789.97

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1.5x scale

Why These Related Problems?

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