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Finding the Fourth Proportional to 418,818.96, 627,865.56 and 169,338.96

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Solution

The fourth proportional to 418,818.96, 627,865.56 and 169,338.96 is: 253,861.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,818.96 : 627,865.56 = 169,338.96 : x
  2. Step 2: Convert to fraction form
    418,818.96/627,865.56 = 169,338.96/x
  3. Step 3: Cross multiply
    418,818.96x = 627,865.56 × 169,338.96
  4. Step 4: Simplify right side
    418,818.96x = 106,322,100,950.22
  5. Step 5: Solve for x
    x = 106,322,100,950.22/418,818.96
  6. Step 6: Final answer
    x = 253,861.72

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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.