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Finding the Fourth Proportional to 542,440.46, 813,715.37 and 143,108.84

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Solution

The fourth proportional to 542,440.46, 813,715.37 and 143,108.84 is: 214,677.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,440.46 : 813,715.37 = 143,108.84 : x
  2. Step 2: Convert to fraction form
    542,440.46/813,715.37 = 143,108.84/x
  3. Step 3: Cross multiply
    542,440.46x = 813,715.37 × 143,108.84
  4. Step 4: Simplify right side
    542,440.46x = 116,449,857,906.75
  5. Step 5: Solve for x
    x = 116,449,857,906.75/542,440.46
  6. Step 6: Final answer
    x = 214,677.68

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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.