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Finding the Fourth Proportional to 526,462.89, 789,694.36 and 171,476.90

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Solution

The fourth proportional to 526,462.89, 789,694.36 and 171,476.90 is: 257,215.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,462.89 : 789,694.36 = 171,476.90 : x
  2. Step 2: Convert to fraction form
    526,462.89/789,694.36 = 171,476.90/x
  3. Step 3: Cross multiply
    526,462.89x = 789,694.36 × 171,476.90
  4. Step 4: Simplify right side
    526,462.89x = 135,414,340,349.03
  5. Step 5: Solve for x
    x = 135,414,340,349.03/526,462.89
  6. Step 6: Final answer
    x = 257,215.36

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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.