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Finding the Fourth Proportional to 323,847.10, 485,770.65 and 317,626.30

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Solution

The fourth proportional to 323,847.10, 485,770.65 and 317,626.30 is: 476,439.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,847.10 : 485,770.65 = 317,626.30 : x
  2. Step 2: Convert to fraction form
    323,847.10/485,770.65 = 317,626.30/x
  3. Step 3: Cross multiply
    323,847.10x = 485,770.65 × 317,626.30
  4. Step 4: Simplify right side
    323,847.10x = 154,293,534,208.10
  5. Step 5: Solve for x
    x = 154,293,534,208.10/323,847.10
  6. Step 6: Final answer
    x = 476,439.45

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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.