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Finding the Fourth Proportional to 338,431.70, 466,976.53 and 193,171.16

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Solution

The fourth proportional to 338,431.70, 466,976.53 and 193,171.16 is: 266,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,431.70 : 466,976.53 = 193,171.16 : x
  2. Step 2: Convert to fraction form
    338,431.70/466,976.53 = 193,171.16/x
  3. Step 3: Cross multiply
    338,431.70x = 466,976.53 × 193,171.16
  4. Step 4: Simplify right side
    338,431.70x = 90,206,397,992.87
  5. Step 5: Solve for x
    x = 90,206,397,992.87/338,431.70
  6. Step 6: Final answer
    x = 266,542.40

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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.