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Finding the Fourth Proportional to 355,078.26, 490,000.40 and 193,933.96

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Solution

The fourth proportional to 355,078.26, 490,000.40 and 193,933.96 is: 267,624.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,078.26 : 490,000.40 = 193,933.96 : x
  2. Step 2: Convert to fraction form
    355,078.26/490,000.40 = 193,933.96/x
  3. Step 3: Cross multiply
    355,078.26x = 490,000.40 × 193,933.96
  4. Step 4: Simplify right side
    355,078.26x = 95,027,717,973.58
  5. Step 5: Solve for x
    x = 95,027,717,973.58/355,078.26
  6. Step 6: Final answer
    x = 267,624.71

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1.5x scale

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.