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Finding the Fourth Proportional to 348,208.89, 480,379.55 and 240,592.09

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Solution

The fourth proportional to 348,208.89, 480,379.55 and 240,592.09 is: 331,914.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,208.89 : 480,379.55 = 240,592.09 : x
  2. Step 2: Convert to fraction form
    348,208.89/480,379.55 = 240,592.09/x
  3. Step 3: Cross multiply
    348,208.89x = 480,379.55 × 240,592.09
  4. Step 4: Simplify right side
    348,208.89x = 115,575,519,328.29
  5. Step 5: Solve for x
    x = 115,575,519,328.29/348,208.89
  6. Step 6: Final answer
    x = 331,914.33

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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.