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Finding the Fourth Proportional to 526,241.28, 789,165.96 and 189,189.96

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Solution

The fourth proportional to 526,241.28, 789,165.96 and 189,189.96 is: 283,714.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,241.28 : 789,165.96 = 189,189.96 : x
  2. Step 2: Convert to fraction form
    526,241.28/789,165.96 = 189,189.96/x
  3. Step 3: Cross multiply
    526,241.28x = 789,165.96 × 189,189.96
  4. Step 4: Simplify right side
    526,241.28x = 149,302,276,405.76
  5. Step 5: Solve for x
    x = 149,302,276,405.76/526,241.28
  6. Step 6: Final answer
    x = 283,714.49

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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.