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Finding the Fourth Proportional to 526,361.34, 789,534.68 and 126,998.76

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Solution

The fourth proportional to 526,361.34, 789,534.68 and 126,998.76 is: 190,496.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,361.34 : 789,534.68 = 126,998.76 : x
  2. Step 2: Convert to fraction form
    526,361.34/789,534.68 = 126,998.76/x
  3. Step 3: Cross multiply
    526,361.34x = 789,534.68 × 126,998.76
  4. Step 4: Simplify right side
    526,361.34x = 100,269,924,702.00
  5. Step 5: Solve for x
    x = 100,269,924,702.00/526,361.34
  6. Step 6: Final answer
    x = 190,496.37

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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.