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Finding the Fourth Proportional to 397,176.66, 547,883.72 and 251,715.30

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Solution

The fourth proportional to 397,176.66, 547,883.72 and 251,715.30 is: 347,227.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,176.66 : 547,883.72 = 251,715.30 : x
  2. Step 2: Convert to fraction form
    397,176.66/547,883.72 = 251,715.30/x
  3. Step 3: Cross multiply
    397,176.66x = 547,883.72 × 251,715.30
  4. Step 4: Simplify right side
    397,176.66x = 137,910,714,944.92
  5. Step 5: Solve for x
    x = 137,910,714,944.92/397,176.66
  6. Step 6: Final answer
    x = 347,227.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.