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Finding the Fourth Proportional to 611,734.62, 917,796.94 and 256,653.30

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Solution

The fourth proportional to 611,734.62, 917,796.94 and 256,653.30 is: 385,061.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,734.62 : 917,796.94 = 256,653.30 : x
  2. Step 2: Convert to fraction form
    611,734.62/917,796.94 = 256,653.30/x
  3. Step 3: Cross multiply
    611,734.62x = 917,796.94 × 256,653.30
  4. Step 4: Simplify right side
    611,734.62x = 235,555,613,380.90
  5. Step 5: Solve for x
    x = 235,555,613,380.90/611,734.62
  6. Step 6: Final answer
    x = 385,061.77

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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.