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Finding the Fourth Proportional to 322,406.70, 483,379.65 and 144,768.30

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Solution

The fourth proportional to 322,406.70, 483,379.65 and 144,768.30 is: 217,048.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,406.70 : 483,379.65 = 144,768.30 : x
  2. Step 2: Convert to fraction form
    322,406.70/483,379.65 = 144,768.30/x
  3. Step 3: Cross multiply
    322,406.70x = 483,379.65 × 144,768.30
  4. Step 4: Simplify right side
    322,406.70x = 69,978,050,185.10
  5. Step 5: Solve for x
    x = 69,978,050,185.10/322,406.70
  6. Step 6: Final answer
    x = 217,048.99

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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.