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Finding the Fourth Proportional to 339,856.88, 468,990.20 and 186,893.76

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Solution

The fourth proportional to 339,856.88, 468,990.20 and 186,893.76 is: 257,906.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,856.88 : 468,990.20 = 186,893.76 : x
  2. Step 2: Convert to fraction form
    339,856.88/468,990.20 = 186,893.76/x
  3. Step 3: Cross multiply
    339,856.88x = 468,990.20 × 186,893.76
  4. Step 4: Simplify right side
    339,856.88x = 87,651,341,881.15
  5. Step 5: Solve for x
    x = 87,651,341,881.15/339,856.88
  6. Step 6: Final answer
    x = 257,906.63

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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.