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Finding the Fourth Proportional to 489,196.80, 733,924.80 and 173,620.80

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Solution

The fourth proportional to 489,196.80, 733,924.80 and 173,620.80 is: 260,477.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,196.80 : 733,924.80 = 173,620.80 : x
  2. Step 2: Convert to fraction form
    489,196.80/733,924.80 = 173,620.80/x
  3. Step 3: Cross multiply
    489,196.80x = 733,924.80 × 173,620.80
  4. Step 4: Simplify right side
    489,196.80x = 127,424,610,915.84
  5. Step 5: Solve for x
    x = 127,424,610,915.84/489,196.80
  6. Step 6: Final answer
    x = 260,477.20

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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.