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Finding the Fourth Proportional to 489,000.80, 733,630.80 and 173,424.80

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Solution

The fourth proportional to 489,000.80, 733,630.80 and 173,424.80 is: 260,183.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,000.80 : 733,630.80 = 173,424.80 : x
  2. Step 2: Convert to fraction form
    489,000.80/733,630.80 = 173,424.80/x
  3. Step 3: Cross multiply
    489,000.80x = 733,630.80 × 173,424.80
  4. Step 4: Simplify right side
    489,000.80x = 127,229,774,763.84
  5. Step 5: Solve for x
    x = 127,229,774,763.84/489,000.80
  6. Step 6: Final answer
    x = 260,183.16

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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.