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Finding the Fourth Proportional to 322,715.57, 445,341.15 and 179,472.53

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Solution

The fourth proportional to 322,715.57, 445,341.15 and 179,472.53 is: 247,668.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,715.57 : 445,341.15 = 179,472.53 : x
  2. Step 2: Convert to fraction form
    322,715.57/445,341.15 = 179,472.53/x
  3. Step 3: Cross multiply
    322,715.57x = 445,341.15 × 179,472.53
  4. Step 4: Simplify right side
    322,715.57x = 79,926,504,016.96
  5. Step 5: Solve for x
    x = 79,926,504,016.96/322,715.57
  6. Step 6: Final answer
    x = 247,668.57

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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.