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Finding the Fourth Proportional to 489,092.10, 733,638.15 and 336,876.90

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Solution

The fourth proportional to 489,092.10, 733,638.15 and 336,876.90 is: 505,315.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,092.10 : 733,638.15 = 336,876.90 : x
  2. Step 2: Convert to fraction form
    489,092.10/733,638.15 = 336,876.90/x
  3. Step 3: Cross multiply
    489,092.10x = 733,638.15 × 336,876.90
  4. Step 4: Simplify right side
    489,092.10x = 247,145,745,693.74
  5. Step 5: Solve for x
    x = 247,145,745,693.74/489,092.10
  6. Step 6: Final answer
    x = 505,315.35

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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.