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Finding the Fourth Proportional to 447,706.43, 617,803.69 and 254,118.10

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Solution

The fourth proportional to 447,706.43, 617,803.69 and 254,118.10 is: 350,665.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,706.43 : 617,803.69 = 254,118.10 : x
  2. Step 2: Convert to fraction form
    447,706.43/617,803.69 = 254,118.10/x
  3. Step 3: Cross multiply
    447,706.43x = 617,803.69 × 254,118.10
  4. Step 4: Simplify right side
    447,706.43x = 156,995,099,875.79
  5. Step 5: Solve for x
    x = 156,995,099,875.79/447,706.43
  6. Step 6: Final answer
    x = 350,665.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.