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Finding the Fourth Proportional to 443,533.58, 612,076.55 and 239,584.49

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Solution

The fourth proportional to 443,533.58, 612,076.55 and 239,584.49 is: 330,626.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,533.58 : 612,076.55 = 239,584.49 : x
  2. Step 2: Convert to fraction form
    443,533.58/612,076.55 = 239,584.49/x
  3. Step 3: Cross multiply
    443,533.58x = 612,076.55 × 239,584.49
  4. Step 4: Simplify right side
    443,533.58x = 146,644,043,814.40
  5. Step 5: Solve for x
    x = 146,644,043,814.40/443,533.58
  6. Step 6: Final answer
    x = 330,626.70

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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.