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Finding the Fourth Proportional to 339,780.80, 468,856.80 and 186,793.76

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Solution

The fourth proportional to 339,780.80, 468,856.80 and 186,793.76 is: 257,753.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,780.80 : 468,856.80 = 186,793.76 : x
  2. Step 2: Convert to fraction form
    339,780.80/468,856.80 = 186,793.76/x
  3. Step 3: Cross multiply
    339,780.80x = 468,856.80 × 186,793.76
  4. Step 4: Simplify right side
    339,780.80x = 87,579,524,573.57
  5. Step 5: Solve for x
    x = 87,579,524,573.57/339,780.80
  6. Step 6: Final answer
    x = 257,753.01

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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.