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Finding the Fourth Proportional to 454,073.80, 680,624.70 and 154,276.60

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Solution

The fourth proportional to 454,073.80, 680,624.70 and 154,276.60 is: 231,249.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,073.80 : 680,624.70 = 154,276.60 : x
  2. Step 2: Convert to fraction form
    454,073.80/680,624.70 = 154,276.60/x
  3. Step 3: Cross multiply
    454,073.80x = 680,624.70 × 154,276.60
  4. Step 4: Simplify right side
    454,073.80x = 105,004,464,592.02
  5. Step 5: Solve for x
    x = 105,004,464,592.02/454,073.80
  6. Step 6: Final answer
    x = 231,249.78

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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.