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Finding the Fourth Proportional to 547,666.56, 755,771.52 and 305,952.60

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Solution

The fourth proportional to 547,666.56, 755,771.52 and 305,952.60 is: 422,209.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,666.56 : 755,771.52 = 305,952.60 : x
  2. Step 2: Convert to fraction form
    547,666.56/755,771.52 = 305,952.60/x
  3. Step 3: Cross multiply
    547,666.56x = 755,771.52 × 305,952.60
  4. Step 4: Simplify right side
    547,666.56x = 231,230,261,549.95
  5. Step 5: Solve for x
    x = 231,230,261,549.95/547,666.56
  6. Step 6: Final answer
    x = 422,209.93

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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.