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Finding the Fourth Proportional to 517,174.60, 775,761.90 and 143,197.60

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Solution

The fourth proportional to 517,174.60, 775,761.90 and 143,197.60 is: 214,796.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,174.60 : 775,761.90 = 143,197.60 : x
  2. Step 2: Convert to fraction form
    517,174.60/775,761.90 = 143,197.60/x
  3. Step 3: Cross multiply
    517,174.60x = 775,761.90 × 143,197.60
  4. Step 4: Simplify right side
    517,174.60x = 111,087,242,251.44
  5. Step 5: Solve for x
    x = 111,087,242,251.44/517,174.60
  6. Step 6: Final answer
    x = 214,796.40

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Similar ratio
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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.