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Finding the Fourth Proportional to 483,218.40, 725,173.20 and 202,936.80

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Solution

The fourth proportional to 483,218.40, 725,173.20 and 202,936.80 is: 304,550.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,218.40 : 725,173.20 = 202,936.80 : x
  2. Step 2: Convert to fraction form
    483,218.40/725,173.20 = 202,936.80/x
  3. Step 3: Cross multiply
    483,218.40x = 725,173.20 × 202,936.80
  4. Step 4: Simplify right side
    483,218.40x = 147,164,328,653.76
  5. Step 5: Solve for x
    x = 147,164,328,653.76/483,218.40
  6. Step 6: Final answer
    x = 304,550.34

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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.