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Finding the Fourth Proportional to 474,378.80, 654,671.77 and 273,239.60

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Solution

The fourth proportional to 474,378.80, 654,671.77 and 273,239.60 is: 377,087.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,378.80 : 654,671.77 = 273,239.60 : x
  2. Step 2: Convert to fraction form
    474,378.80/654,671.77 = 273,239.60/x
  3. Step 3: Cross multiply
    474,378.80x = 654,671.77 × 273,239.60
  4. Step 4: Simplify right side
    474,378.80x = 178,882,248,609.63
  5. Step 5: Solve for x
    x = 178,882,248,609.63/474,378.80
  6. Step 6: Final answer
    x = 377,087.36

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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.