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Finding the Fourth Proportional to 570,775.20, 856,171.12 and 271,286.32

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Solution

The fourth proportional to 570,775.20, 856,171.12 and 271,286.32 is: 406,933.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,775.20 : 856,171.12 = 271,286.32 : x
  2. Step 2: Convert to fraction form
    570,775.20/856,171.12 = 271,286.32/x
  3. Step 3: Cross multiply
    570,775.20x = 856,171.12 × 271,286.32
  4. Step 4: Simplify right side
    570,775.20x = 232,267,512,435.08
  5. Step 5: Solve for x
    x = 232,267,512,435.08/570,775.20
  6. Step 6: Final answer
    x = 406,933.43

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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.