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Finding the Fourth Proportional to 445,589.84, 668,411.64 and 179,349.20

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Solution

The fourth proportional to 445,589.84, 668,411.64 and 179,349.20 is: 269,034.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,589.84 : 668,411.64 = 179,349.20 : x
  2. Step 2: Convert to fraction form
    445,589.84/668,411.64 = 179,349.20/x
  3. Step 3: Cross multiply
    445,589.84x = 668,411.64 × 179,349.20
  4. Step 4: Simplify right side
    445,589.84x = 119,879,092,904.69
  5. Step 5: Solve for x
    x = 119,879,092,904.69/445,589.84
  6. Step 6: Final answer
    x = 269,034.62

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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.