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Finding the Fourth Proportional to 512,954.93, 769,448.01 and 175,990.86

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Solution

The fourth proportional to 512,954.93, 769,448.01 and 175,990.86 is: 263,991.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,954.93 : 769,448.01 = 175,990.86 : x
  2. Step 2: Convert to fraction form
    512,954.93/769,448.01 = 175,990.86/x
  3. Step 3: Cross multiply
    512,954.93x = 769,448.01 × 175,990.86
  4. Step 4: Simplify right side
    512,954.93x = 135,415,817,005.19
  5. Step 5: Solve for x
    x = 135,415,817,005.19/512,954.93
  6. Step 6: Final answer
    x = 263,991.65

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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.