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Finding the Fourth Proportional to 447,013.92, 616,879.17 and 245,809.92

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Solution

The fourth proportional to 447,013.92, 616,879.17 and 245,809.92 is: 339,217.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,013.92 : 616,879.17 = 245,809.92 : x
  2. Step 2: Convert to fraction form
    447,013.92/616,879.17 = 245,809.92/x
  3. Step 3: Cross multiply
    447,013.92x = 616,879.17 × 245,809.92
  4. Step 4: Simplify right side
    447,013.92x = 151,635,019,427.37
  5. Step 5: Solve for x
    x = 151,635,019,427.37/447,013.92
  6. Step 6: Final answer
    x = 339,217.67

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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.