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Finding the Fourth Proportional to 484,183.36, 726,275.12 and 129,198.72

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Solution

The fourth proportional to 484,183.36, 726,275.12 and 129,198.72 is: 193,798.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,183.36 : 726,275.12 = 129,198.72 : x
  2. Step 2: Convert to fraction form
    484,183.36/726,275.12 = 129,198.72/x
  3. Step 3: Cross multiply
    484,183.36x = 726,275.12 × 129,198.72
  4. Step 4: Simplify right side
    484,183.36x = 93,833,815,871.85
  5. Step 5: Solve for x
    x = 93,833,815,871.85/484,183.36
  6. Step 6: Final answer
    x = 193,798.10

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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.