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Finding the Fourth Proportional to 489,278.30, 733,953.90 and 173,694.20

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Solution

The fourth proportional to 489,278.30, 733,953.90 and 173,694.20 is: 260,554.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,278.30 : 733,953.90 = 173,694.20 : x
  2. Step 2: Convert to fraction form
    489,278.30/733,953.90 = 173,694.20/x
  3. Step 3: Cross multiply
    489,278.30x = 733,953.90 × 173,694.20
  4. Step 4: Simplify right side
    489,278.30x = 127,483,535,497.38
  5. Step 5: Solve for x
    x = 127,483,535,497.38/489,278.30
  6. Step 6: Final answer
    x = 260,554.24

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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.