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Finding the Fourth Proportional to 484,505.70, 726,758.76 and 217,954.86

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Solution

The fourth proportional to 484,505.70, 726,758.76 and 217,954.86 is: 326,932.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,505.70 : 726,758.76 = 217,954.86 : x
  2. Step 2: Convert to fraction form
    484,505.70/726,758.76 = 217,954.86/x
  3. Step 3: Cross multiply
    484,505.70x = 726,758.76 × 217,954.86
  4. Step 4: Simplify right side
    484,505.70x = 158,400,603,789.57
  5. Step 5: Solve for x
    x = 158,400,603,789.57/484,505.70
  6. Step 6: Final answer
    x = 326,932.38

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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.