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Finding the Fourth Proportional to 647,318.52, 970,976.43 and 174,003.93

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Solution

The fourth proportional to 647,318.52, 970,976.43 and 174,003.93 is: 261,005.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,318.52 : 970,976.43 = 174,003.93 : x
  2. Step 2: Convert to fraction form
    647,318.52/970,976.43 = 174,003.93/x
  3. Step 3: Cross multiply
    647,318.52x = 970,976.43 × 174,003.93
  4. Step 4: Simplify right side
    647,318.52x = 168,953,714,757.37
  5. Step 5: Solve for x
    x = 168,953,714,757.37/647,318.52
  6. Step 6: Final answer
    x = 261,005.53

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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.