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Finding the Fourth Proportional to 322,247.16, 483,336.72 and 85,613.76

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Solution

The fourth proportional to 322,247.16, 483,336.72 and 85,613.76 is: 128,411.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,247.16 : 483,336.72 = 85,613.76 : x
  2. Step 2: Convert to fraction form
    322,247.16/483,336.72 = 85,613.76/x
  3. Step 3: Cross multiply
    322,247.16x = 483,336.72 × 85,613.76
  4. Step 4: Simplify right side
    322,247.16x = 41,380,273,945.27
  5. Step 5: Solve for x
    x = 41,380,273,945.27/322,247.16
  6. Step 6: Final answer
    x = 128,411.60

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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.