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Finding the Fourth Proportional to 297,639.64, 410,745.78 and 161,674.96

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Solution

The fourth proportional to 297,639.64, 410,745.78 and 161,674.96 is: 223,113.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,639.64 : 410,745.78 = 161,674.96 : x
  2. Step 2: Convert to fraction form
    297,639.64/410,745.78 = 161,674.96/x
  3. Step 3: Cross multiply
    297,639.64x = 410,745.78 × 161,674.96
  4. Step 4: Simplify right side
    297,639.64x = 66,407,307,551.67
  5. Step 5: Solve for x
    x = 66,407,307,551.67/297,639.64
  6. Step 6: Final answer
    x = 223,113.12

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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.