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Finding the Fourth Proportional to 289,085.69, 433,626.10 and 225,958.93

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Solution

The fourth proportional to 289,085.69, 433,626.10 and 225,958.93 is: 338,936.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,085.69 : 433,626.10 = 225,958.93 : x
  2. Step 2: Convert to fraction form
    289,085.69/433,626.10 = 225,958.93/x
  3. Step 3: Cross multiply
    289,085.69x = 433,626.10 × 225,958.93
  4. Step 4: Simplify right side
    289,085.69x = 97,981,687,927.11
  5. Step 5: Solve for x
    x = 97,981,687,927.11/289,085.69
  6. Step 6: Final answer
    x = 338,936.48

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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.