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Finding the Fourth Proportional to 447,394.92, 617,415.27 and 253,815.60

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Solution

The fourth proportional to 447,394.92, 617,415.27 and 253,815.60 is: 350,271.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,394.92 : 617,415.27 = 253,815.60 : x
  2. Step 2: Convert to fraction form
    447,394.92/617,415.27 = 253,815.60/x
  3. Step 3: Cross multiply
    447,394.92x = 617,415.27 × 253,815.60
  4. Step 4: Simplify right side
    447,394.92x = 156,709,627,204.21
  5. Step 5: Solve for x
    x = 156,709,627,204.21/447,394.92
  6. Step 6: Final answer
    x = 350,271.36

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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.