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Finding the Fourth Proportional to 531,561.54, 796,778.35 and 261,308.55

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Solution

The fourth proportional to 531,561.54, 796,778.35 and 261,308.55 is: 391,685.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,561.54 : 796,778.35 = 261,308.55 : x
  2. Step 2: Convert to fraction form
    531,561.54/796,778.35 = 261,308.55/x
  3. Step 3: Cross multiply
    531,561.54x = 796,778.35 × 261,308.55
  4. Step 4: Simplify right side
    531,561.54x = 208,204,994,003.35
  5. Step 5: Solve for x
    x = 208,204,994,003.35/531,561.54
  6. Step 6: Final answer
    x = 391,685.59

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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.