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Finding the Fourth Proportional to 412,396.13, 568,904.43 and 357,871.79

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Solution

The fourth proportional to 412,396.13, 568,904.43 and 357,871.79 is: 493,687.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,396.13 : 568,904.43 = 357,871.79 : x
  2. Step 2: Convert to fraction form
    412,396.13/568,904.43 = 357,871.79/x
  3. Step 3: Cross multiply
    412,396.13x = 568,904.43 × 357,871.79
  4. Step 4: Simplify right side
    412,396.13x = 203,594,843,187.50
  5. Step 5: Solve for x
    x = 203,594,843,187.50/412,396.13
  6. Step 6: Final answer
    x = 493,687.58

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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.