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Finding the Fourth Proportional to 459,241.34, 688,874.96 and 126,817.34

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Solution

The fourth proportional to 459,241.34, 688,874.96 and 126,817.34 is: 190,229.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,241.34 : 688,874.96 = 126,817.34 : x
  2. Step 2: Convert to fraction form
    459,241.34/688,874.96 = 126,817.34/x
  3. Step 3: Cross multiply
    459,241.34x = 688,874.96 × 126,817.34
  4. Step 4: Simplify right side
    459,241.34x = 87,361,286,892.48
  5. Step 5: Solve for x
    x = 87,361,286,892.48/459,241.34
  6. Step 6: Final answer
    x = 190,229.58

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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.