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Finding the Fourth Proportional to 297,603.45, 410,695.72 and 161,638.67

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Solution

The fourth proportional to 297,603.45, 410,695.72 and 161,638.67 is: 223,062.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,603.45 : 410,695.72 = 161,638.67 : x
  2. Step 2: Convert to fraction form
    297,603.45/410,695.72 = 161,638.67/x
  3. Step 3: Cross multiply
    297,603.45x = 410,695.72 × 161,638.67
  4. Step 4: Simplify right side
    297,603.45x = 66,384,310,578.14
  5. Step 5: Solve for x
    x = 66,384,310,578.14/297,603.45
  6. Step 6: Final answer
    x = 223,062.97

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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.