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Finding the Fourth Proportional to 607,940.88, 839,060.46 and 411,618.30

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Solution

The fourth proportional to 607,940.88, 839,060.46 and 411,618.30 is: 568,102.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,940.88 : 839,060.46 = 411,618.30 : x
  2. Step 2: Convert to fraction form
    607,940.88/839,060.46 = 411,618.30/x
  3. Step 3: Cross multiply
    607,940.88x = 839,060.46 × 411,618.30
  4. Step 4: Simplify right side
    607,940.88x = 345,372,640,142.42
  5. Step 5: Solve for x
    x = 345,372,640,142.42/607,940.88
  6. Step 6: Final answer
    x = 568,102.35

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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.