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Finding the Fourth Proportional to 312,022.60, 468,033.90 and 275,864.20

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Solution

The fourth proportional to 312,022.60, 468,033.90 and 275,864.20 is: 413,796.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,022.60 : 468,033.90 = 275,864.20 : x
  2. Step 2: Convert to fraction form
    312,022.60/468,033.90 = 275,864.20/x
  3. Step 3: Cross multiply
    312,022.60x = 468,033.90 × 275,864.20
  4. Step 4: Simplify right side
    312,022.60x = 129,113,797,396.38
  5. Step 5: Solve for x
    x = 129,113,797,396.38/312,022.60
  6. Step 6: Final answer
    x = 413,796.30

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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.