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Finding the Fourth Proportional to 620,883.42, 931,299.21 and 177,651.42

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Solution

The fourth proportional to 620,883.42, 931,299.21 and 177,651.42 is: 266,469.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,883.42 : 931,299.21 = 177,651.42 : x
  2. Step 2: Convert to fraction form
    620,883.42/931,299.21 = 177,651.42/x
  3. Step 3: Cross multiply
    620,883.42x = 931,299.21 × 177,651.42
  4. Step 4: Simplify right side
    620,883.42x = 165,446,627,101.38
  5. Step 5: Solve for x
    x = 165,446,627,101.38/620,883.42
  6. Step 6: Final answer
    x = 266,469.71

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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.