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Finding the Fourth Proportional to 548,765.00, 757,385.30 and 376,540.81

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Solution

The fourth proportional to 548,765.00, 757,385.30 and 376,540.81 is: 519,687.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,765.00 : 757,385.30 = 376,540.81 : x
  2. Step 2: Convert to fraction form
    548,765.00/757,385.30 = 376,540.81/x
  3. Step 3: Cross multiply
    548,765.00x = 757,385.30 × 376,540.81
  4. Step 4: Simplify right side
    548,765.00x = 285,186,470,567.93
  5. Step 5: Solve for x
    x = 285,186,470,567.93/548,765.00
  6. Step 6: Final answer
    x = 519,687.80

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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.