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Finding the Fourth Proportional to 322,340.01, 483,509.46 and 85,682.70

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Solution

The fourth proportional to 322,340.01, 483,509.46 and 85,682.70 is: 128,523.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,340.01 : 483,509.46 = 85,682.70 : x
  2. Step 2: Convert to fraction form
    322,340.01/483,509.46 = 85,682.70/x
  3. Step 3: Cross multiply
    322,340.01x = 483,509.46 × 85,682.70
  4. Step 4: Simplify right side
    322,340.01x = 41,428,396,008.34
  5. Step 5: Solve for x
    x = 41,428,396,008.34/322,340.01
  6. Step 6: Final answer
    x = 128,523.90

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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.