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Finding the Fourth Proportional to 447,391.92, 617,411.13 and 253,812.60

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Solution

The fourth proportional to 447,391.92, 617,411.13 and 253,812.60 is: 350,267.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,391.92 : 617,411.13 = 253,812.60 : x
  2. Step 2: Convert to fraction form
    447,391.92/617,411.13 = 253,812.60/x
  3. Step 3: Cross multiply
    447,391.92x = 617,411.13 × 253,812.60
  4. Step 4: Simplify right side
    447,391.92x = 156,706,724,174.24
  5. Step 5: Solve for x
    x = 156,706,724,174.24/447,391.92
  6. Step 6: Final answer
    x = 350,267.22

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1.5x scale

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.