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Finding the Fourth Proportional to 463,673.20, 639,893.04 and 259,712.20

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Solution

The fourth proportional to 463,673.20, 639,893.04 and 259,712.20 is: 358,416.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,673.20 : 639,893.04 = 259,712.20 : x
  2. Step 2: Convert to fraction form
    463,673.20/639,893.04 = 259,712.20/x
  3. Step 3: Cross multiply
    463,673.20x = 639,893.04 × 259,712.20
  4. Step 4: Simplify right side
    463,673.20x = 166,188,029,183.09
  5. Step 5: Solve for x
    x = 166,188,029,183.09/463,673.20
  6. Step 6: Final answer
    x = 358,416.29

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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.