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Finding the Fourth Proportional to 425,416.92, 587,067.78 and 231,826.32

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Solution

The fourth proportional to 425,416.92, 587,067.78 and 231,826.32 is: 319,916.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,416.92 : 587,067.78 = 231,826.32 : x
  2. Step 2: Convert to fraction form
    425,416.92/587,067.78 = 231,826.32/x
  3. Step 3: Cross multiply
    425,416.92x = 587,067.78 × 231,826.32
  4. Step 4: Simplify right side
    425,416.92x = 136,097,763,027.97
  5. Step 5: Solve for x
    x = 136,097,763,027.97/425,416.92
  6. Step 6: Final answer
    x = 319,916.20

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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.