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Finding the Fourth Proportional to 380,081.40, 569,794.05 and 193,092.90

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Solution

The fourth proportional to 380,081.40, 569,794.05 and 193,092.90 is: 289,472.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,081.40 : 569,794.05 = 193,092.90 : x
  2. Step 2: Convert to fraction form
    380,081.40/569,794.05 = 193,092.90/x
  3. Step 3: Cross multiply
    380,081.40x = 569,794.05 × 193,092.90
  4. Step 4: Simplify right side
    380,081.40x = 110,023,185,517.25
  5. Step 5: Solve for x
    x = 110,023,185,517.25/380,081.40
  6. Step 6: Final answer
    x = 289,472.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.