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Finding the Fourth Proportional to 463,213.62, 639,181.08 and 259,275.96

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Solution

The fourth proportional to 463,213.62, 639,181.08 and 259,275.96 is: 357,770.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,213.62 : 639,181.08 = 259,275.96 : x
  2. Step 2: Convert to fraction form
    463,213.62/639,181.08 = 259,275.96/x
  3. Step 3: Cross multiply
    463,213.62x = 639,181.08 × 259,275.96
  4. Step 4: Simplify right side
    463,213.62x = 165,724,288,130.84
  5. Step 5: Solve for x
    x = 165,724,288,130.84/463,213.62
  6. Step 6: Final answer
    x = 357,770.76

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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.