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Finding the Fourth Proportional to 354,235.44, 488,838.60 and 193,091.88

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Solution

The fourth proportional to 354,235.44, 488,838.60 and 193,091.88 is: 266,463.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,235.44 : 488,838.60 = 193,091.88 : x
  2. Step 2: Convert to fraction form
    354,235.44/488,838.60 = 193,091.88/x
  3. Step 3: Cross multiply
    354,235.44x = 488,838.60 × 193,091.88
  4. Step 4: Simplify right side
    354,235.44x = 94,390,764,290.57
  5. Step 5: Solve for x
    x = 94,390,764,290.57/354,235.44
  6. Step 6: Final answer
    x = 266,463.36

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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.