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Finding the Fourth Proportional to 406,917.61, 561,553.02 and 225,637.18

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Solution

The fourth proportional to 406,917.61, 561,553.02 and 225,637.18 is: 311,383.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,917.61 : 561,553.02 = 225,637.18 : x
  2. Step 2: Convert to fraction form
    406,917.61/561,553.02 = 225,637.18/x
  3. Step 3: Cross multiply
    406,917.61x = 561,553.02 × 225,637.18
  4. Step 4: Simplify right side
    406,917.61x = 126,707,238,449.40
  5. Step 5: Solve for x
    x = 126,707,238,449.40/406,917.61
  6. Step 6: Final answer
    x = 311,383.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.