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Finding the Fourth Proportional to 526,517.20, 789,775.80 and 171,567.10

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Solution

The fourth proportional to 526,517.20, 789,775.80 and 171,567.10 is: 257,350.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,517.20 : 789,775.80 = 171,567.10 : x
  2. Step 2: Convert to fraction form
    526,517.20/789,775.80 = 171,567.10/x
  3. Step 3: Cross multiply
    526,517.20x = 789,775.80 × 171,567.10
  4. Step 4: Simplify right side
    526,517.20x = 135,499,543,656.18
  5. Step 5: Solve for x
    x = 135,499,543,656.18/526,517.20
  6. Step 6: Final answer
    x = 257,350.65

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Double scale
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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.