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Finding the Fourth Proportional to 347,100.38, 520,056.21 and 189,439.46

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Solution

The fourth proportional to 347,100.38, 520,056.21 and 189,439.46 is: 283,834.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,100.38 : 520,056.21 = 189,439.46 : x
  2. Step 2: Convert to fraction form
    347,100.38/520,056.21 = 189,439.46/x
  3. Step 3: Cross multiply
    347,100.38x = 520,056.21 × 189,439.46
  4. Step 4: Simplify right side
    347,100.38x = 98,519,167,592.05
  5. Step 5: Solve for x
    x = 98,519,167,592.05/347,100.38
  6. Step 6: Final answer
    x = 283,834.80

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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.