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Finding the Fourth Proportional to 489,435.12, 733,717.80 and 173,850.48

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Solution

The fourth proportional to 489,435.12, 733,717.80 and 173,850.48 is: 260,621.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,435.12 : 733,717.80 = 173,850.48 : x
  2. Step 2: Convert to fraction form
    489,435.12/733,717.80 = 173,850.48/x
  3. Step 3: Cross multiply
    489,435.12x = 733,717.80 × 173,850.48
  4. Step 4: Simplify right side
    489,435.12x = 127,557,191,714.54
  5. Step 5: Solve for x
    x = 127,557,191,714.54/489,435.12
  6. Step 6: Final answer
    x = 260,621.25

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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.