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Finding the Fourth Proportional to 489,228.40, 733,842.60 and 173,717.20

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Solution

The fourth proportional to 489,228.40, 733,842.60 and 173,717.20 is: 260,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,228.40 : 733,842.60 = 173,717.20 : x
  2. Step 2: Convert to fraction form
    489,228.40/733,842.60 = 173,717.20/x
  3. Step 3: Cross multiply
    489,228.40x = 733,842.60 × 173,717.20
  4. Step 4: Simplify right side
    489,228.40x = 127,481,081,712.72
  5. Step 5: Solve for x
    x = 127,481,081,712.72/489,228.40
  6. Step 6: Final answer
    x = 260,575.80

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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.