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Finding the Fourth Proportional to 454,062.69, 681,093.90 and 210,879.09

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Solution

The fourth proportional to 454,062.69, 681,093.90 and 210,879.09 is: 316,318.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,062.69 : 681,093.90 = 210,879.09 : x
  2. Step 2: Convert to fraction form
    454,062.69/681,093.90 = 210,879.09/x
  3. Step 3: Cross multiply
    454,062.69x = 681,093.90 × 210,879.09
  4. Step 4: Simplify right side
    454,062.69x = 143,628,461,836.55
  5. Step 5: Solve for x
    x = 143,628,461,836.55/454,062.69
  6. Step 6: Final answer
    x = 316,318.57

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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.