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Finding the Fourth Proportional to 336,421.90, 504,061.60 and 203,021.85

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Solution

The fourth proportional to 336,421.90, 504,061.60 and 203,021.85 is: 304,188.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,421.90 : 504,061.60 = 203,021.85 : x
  2. Step 2: Convert to fraction form
    336,421.90/504,061.60 = 203,021.85/x
  3. Step 3: Cross multiply
    336,421.90x = 504,061.60 × 203,021.85
  4. Step 4: Simplify right side
    336,421.90x = 102,335,518,545.96
  5. Step 5: Solve for x
    x = 102,335,518,545.96/336,421.90
  6. Step 6: Final answer
    x = 304,188.04

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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.