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Finding the Fourth Proportional to 354,169.87, 488,740.19 and 193,021.47

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Solution

The fourth proportional to 354,169.87, 488,740.19 and 193,021.47 is: 266,361.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,169.87 : 488,740.19 = 193,021.47 : x
  2. Step 2: Convert to fraction form
    354,169.87/488,740.19 = 193,021.47/x
  3. Step 3: Cross multiply
    354,169.87x = 488,740.19 × 193,021.47
  4. Step 4: Simplify right side
    354,169.87x = 94,337,347,960.73
  5. Step 5: Solve for x
    x = 94,337,347,960.73/354,169.87
  6. Step 6: Final answer
    x = 266,361.87

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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.