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Finding the Fourth Proportional to 296,817.40, 445,517.70 and 147,226.60

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Solution

The fourth proportional to 296,817.40, 445,517.70 and 147,226.60 is: 220,984.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,817.40 : 445,517.70 = 147,226.60 : x
  2. Step 2: Convert to fraction form
    296,817.40/445,517.70 = 147,226.60/x
  3. Step 3: Cross multiply
    296,817.40x = 445,517.70 × 147,226.60
  4. Step 4: Simplify right side
    296,817.40x = 65,592,056,210.82
  5. Step 5: Solve for x
    x = 65,592,056,210.82/296,817.40
  6. Step 6: Final answer
    x = 220,984.54

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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.