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Finding the Fourth Proportional to 406,958.67, 561,575.52 and 225,663.93

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Solution

The fourth proportional to 406,958.67, 561,575.52 and 225,663.93 is: 311,401.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,958.67 : 561,575.52 = 225,663.93 : x
  2. Step 2: Convert to fraction form
    406,958.67/561,575.52 = 225,663.93/x
  3. Step 3: Cross multiply
    406,958.67x = 561,575.52 × 225,663.93
  4. Step 4: Simplify right side
    406,958.67x = 126,727,338,834.99
  5. Step 5: Solve for x
    x = 126,727,338,834.99/406,958.67
  6. Step 6: Final answer
    x = 311,401.01

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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.