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Finding the Fourth Proportional to 273,215.20, 409,385.40 and 173,196.40

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Solution

The fourth proportional to 273,215.20, 409,385.40 and 173,196.40 is: 259,517.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,215.20 : 409,385.40 = 173,196.40 : x
  2. Step 2: Convert to fraction form
    273,215.20/409,385.40 = 173,196.40/x
  3. Step 3: Cross multiply
    273,215.20x = 409,385.40 × 173,196.40
  4. Step 4: Simplify right side
    273,215.20x = 70,904,077,492.56
  5. Step 5: Solve for x
    x = 70,904,077,492.56/273,215.20
  6. Step 6: Final answer
    x = 259,517.32

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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.