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Finding the Fourth Proportional to 384,194.70, 538,659.90 and 384,194.70

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Solution

The fourth proportional to 384,194.70, 538,659.90 and 384,194.70 is: 538,659.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,194.70 : 538,659.90 = 384,194.70 : x
  2. Step 2: Convert to fraction form
    384,194.70/538,659.90 = 384,194.70/x
  3. Step 3: Cross multiply
    384,194.70x = 538,659.90 × 384,194.70
  4. Step 4: Simplify right side
    384,194.70x = 206,950,278,682.53
  5. Step 5: Solve for x
    x = 206,950,278,682.53/384,194.70
  6. Step 6: Final answer
    x = 538,659.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.