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Finding the Fourth Proportional to 547,903.44, 756,136.62 and 306,186.48

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Solution

The fourth proportional to 547,903.44, 756,136.62 and 306,186.48 is: 422,554.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,903.44 : 756,136.62 = 306,186.48 : x
  2. Step 2: Convert to fraction form
    547,903.44/756,136.62 = 306,186.48/x
  3. Step 3: Cross multiply
    547,903.44x = 756,136.62 × 306,186.48
  4. Step 4: Simplify right side
    547,903.44x = 231,518,810,076.90
  5. Step 5: Solve for x
    x = 231,518,810,076.90/547,903.44
  6. Step 6: Final answer
    x = 422,554.04

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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.