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Finding the Fourth Proportional to 452,479.43, 678,806.66 and 171,974.81

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Solution

The fourth proportional to 452,479.43, 678,806.66 and 171,974.81 is: 257,995.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,479.43 : 678,806.66 = 171,974.81 : x
  2. Step 2: Convert to fraction form
    452,479.43/678,806.66 = 171,974.81/x
  3. Step 3: Cross multiply
    452,479.43x = 678,806.66 × 171,974.81
  4. Step 4: Simplify right side
    452,479.43x = 116,737,648,507.19
  5. Step 5: Solve for x
    x = 116,737,648,507.19/452,479.43
  6. Step 6: Final answer
    x = 257,995.48

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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.