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Finding the Fourth Proportional to 475,961.40, 713,942.10 and 454,966.20

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Solution

The fourth proportional to 475,961.40, 713,942.10 and 454,966.20 is: 682,449.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,961.40 : 713,942.10 = 454,966.20 : x
  2. Step 2: Convert to fraction form
    475,961.40/713,942.10 = 454,966.20/x
  3. Step 3: Cross multiply
    475,961.40x = 713,942.10 × 454,966.20
  4. Step 4: Simplify right side
    475,961.40x = 324,819,524,257.02
  5. Step 5: Solve for x
    x = 324,819,524,257.02/475,961.40
  6. Step 6: Final answer
    x = 682,449.30

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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.