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Finding the Fourth Proportional to 408,648.65, 612,817.45 and 186,877.13

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Solution

The fourth proportional to 408,648.65, 612,817.45 and 186,877.13 is: 280,244.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,648.65 : 612,817.45 = 186,877.13 : x
  2. Step 2: Convert to fraction form
    408,648.65/612,817.45 = 186,877.13/x
  3. Step 3: Cross multiply
    408,648.65x = 612,817.45 × 186,877.13
  4. Step 4: Simplify right side
    408,648.65x = 114,521,562,738.64
  5. Step 5: Solve for x
    x = 114,521,562,738.64/408,648.65
  6. Step 6: Final answer
    x = 280,244.57

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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.