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Finding the Fourth Proportional to 489,072.60, 733,827.60 and 236,255.40

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Solution

The fourth proportional to 489,072.60, 733,827.60 and 236,255.40 is: 354,488.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,072.60 : 733,827.60 = 236,255.40 : x
  2. Step 2: Convert to fraction form
    489,072.60/733,827.60 = 236,255.40/x
  3. Step 3: Cross multiply
    489,072.60x = 733,827.60 × 236,255.40
  4. Step 4: Simplify right side
    489,072.60x = 173,370,733,169.04
  5. Step 5: Solve for x
    x = 173,370,733,169.04/489,072.60
  6. Step 6: Final answer
    x = 354,488.75

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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.