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Finding the Fourth Proportional to 625,911.84, 938,632.05 and 226,453.86

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Solution

The fourth proportional to 625,911.84, 938,632.05 and 226,453.86 is: 339,595.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,911.84 : 938,632.05 = 226,453.86 : x
  2. Step 2: Convert to fraction form
    625,911.84/938,632.05 = 226,453.86/x
  3. Step 3: Cross multiply
    625,911.84x = 938,632.05 × 226,453.86
  4. Step 4: Simplify right side
    625,911.84x = 212,556,850,842.21
  5. Step 5: Solve for x
    x = 212,556,850,842.21/625,911.84
  6. Step 6: Final answer
    x = 339,595.51

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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.