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Finding the Fourth Proportional to 547,196.16, 755,052.60 and 305,473.43

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Solution

The fourth proportional to 547,196.16, 755,052.60 and 305,473.43 is: 421,509.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,196.16 : 755,052.60 = 305,473.43 : x
  2. Step 2: Convert to fraction form
    547,196.16/755,052.60 = 305,473.43/x
  3. Step 3: Cross multiply
    547,196.16x = 755,052.60 × 305,473.43
  4. Step 4: Simplify right side
    547,196.16x = 230,648,503,777.16
  5. Step 5: Solve for x
    x = 230,648,503,777.16/547,196.16
  6. Step 6: Final answer
    x = 421,509.73

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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.