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Finding the Fourth Proportional to 273,219.40, 409,886.70 and 115,366.60

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Solution

The fourth proportional to 273,219.40, 409,886.70 and 115,366.60 is: 173,074.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,219.40 : 409,886.70 = 115,366.60 : x
  2. Step 2: Convert to fraction form
    273,219.40/409,886.70 = 115,366.60/x
  3. Step 3: Cross multiply
    273,219.40x = 409,886.70 × 115,366.60
  4. Step 4: Simplify right side
    273,219.40x = 47,287,234,964.22
  5. Step 5: Solve for x
    x = 47,287,234,964.22/273,219.40
  6. Step 6: Final answer
    x = 173,074.22

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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.