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Finding the Fourth Proportional to 263,419.76, 363,524.82 and 155,950.58

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Solution

The fourth proportional to 263,419.76, 363,524.82 and 155,950.58 is: 215,215.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,419.76 : 363,524.82 = 155,950.58 : x
  2. Step 2: Convert to fraction form
    263,419.76/363,524.82 = 155,950.58/x
  3. Step 3: Cross multiply
    263,419.76x = 363,524.82 × 155,950.58
  4. Step 4: Simplify right side
    263,419.76x = 56,691,906,523.40
  5. Step 5: Solve for x
    x = 56,691,906,523.40/263,419.76
  6. Step 6: Final answer
    x = 215,215.09

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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.