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Finding the Fourth Proportional to 479,410.92, 718,929.45 and 179,728.16

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Solution

The fourth proportional to 479,410.92, 718,929.45 and 179,728.16 is: 269,522.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,410.92 : 718,929.45 = 179,728.16 : x
  2. Step 2: Convert to fraction form
    479,410.92/718,929.45 = 179,728.16/x
  3. Step 3: Cross multiply
    479,410.92x = 718,929.45 × 179,728.16
  4. Step 4: Simplify right side
    479,410.92x = 129,211,863,623.67
  5. Step 5: Solve for x
    x = 129,211,863,623.67/479,410.92
  6. Step 6: Final answer
    x = 269,522.15

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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.