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Finding the Fourth Proportional to 488,212.65, 732,435.89 and 203,744.97

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Solution

The fourth proportional to 488,212.65, 732,435.89 and 203,744.97 is: 305,666.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,212.65 : 732,435.89 = 203,744.97 : x
  2. Step 2: Convert to fraction form
    488,212.65/732,435.89 = 203,744.97/x
  3. Step 3: Cross multiply
    488,212.65x = 732,435.89 × 203,744.97
  4. Step 4: Simplify right side
    488,212.65x = 149,230,127,416.25
  5. Step 5: Solve for x
    x = 149,230,127,416.25/488,212.65
  6. Step 6: Final answer
    x = 305,666.24

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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.