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Finding the Fourth Proportional to 611,136.56, 916,767.48 and 211,777.04

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Solution

The fourth proportional to 611,136.56, 916,767.48 and 211,777.04 is: 317,687.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,136.56 : 916,767.48 = 211,777.04 : x
  2. Step 2: Convert to fraction form
    611,136.56/916,767.48 = 211,777.04/x
  3. Step 3: Cross multiply
    611,136.56x = 916,767.48 × 211,777.04
  4. Step 4: Simplify right side
    611,136.56x = 194,150,303,282.66
  5. Step 5: Solve for x
    x = 194,150,303,282.66/611,136.56
  6. Step 6: Final answer
    x = 317,687.27

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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.