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Finding the Fourth Proportional to 320,997.94, 481,495.79 and 96,357.47

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Solution

The fourth proportional to 320,997.94, 481,495.79 and 96,357.47 is: 144,535.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,997.94 : 481,495.79 = 96,357.47 : x
  2. Step 2: Convert to fraction form
    320,997.94/481,495.79 = 96,357.47/x
  3. Step 3: Cross multiply
    320,997.94x = 481,495.79 × 96,357.47
  4. Step 4: Simplify right side
    320,997.94x = 46,395,713,973.47
  5. Step 5: Solve for x
    x = 46,395,713,973.47/320,997.94
  6. Step 6: Final answer
    x = 144,535.86

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1.5x scale

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.