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Finding the Fourth Proportional to 547,198.78, 822,043.71 and 395,862.64

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Solution

The fourth proportional to 547,198.78, 822,043.71 and 395,862.64 is: 594,695.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,198.78 : 822,043.71 = 395,862.64 : x
  2. Step 2: Convert to fraction form
    547,198.78/822,043.71 = 395,862.64/x
  3. Step 3: Cross multiply
    547,198.78x = 822,043.71 × 395,862.64
  4. Step 4: Simplify right side
    547,198.78x = 325,416,393,235.99
  5. Step 5: Solve for x
    x = 325,416,393,235.99/547,198.78
  6. Step 6: Final answer
    x = 594,695.03

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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.