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Finding the Fourth Proportional to 322,147.92, 483,184.34 and 85,508.98

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Solution

The fourth proportional to 322,147.92, 483,184.34 and 85,508.98 is: 128,253.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,147.92 : 483,184.34 = 85,508.98 : x
  2. Step 2: Convert to fraction form
    322,147.92/483,184.34 = 85,508.98/x
  3. Step 3: Cross multiply
    322,147.92x = 483,184.34 × 85,508.98
  4. Step 4: Simplify right side
    322,147.92x = 41,316,600,065.37
  5. Step 5: Solve for x
    x = 41,316,600,065.37/322,147.92
  6. Step 6: Final answer
    x = 128,253.51

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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.