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Finding the Fourth Proportional to 411,546.40, 617,319.60 and 242,893.60

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Solution

The fourth proportional to 411,546.40, 617,319.60 and 242,893.60 is: 364,340.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,546.40 : 617,319.60 = 242,893.60 : x
  2. Step 2: Convert to fraction form
    411,546.40/617,319.60 = 242,893.60/x
  3. Step 3: Cross multiply
    411,546.40x = 617,319.60 × 242,893.60
  4. Step 4: Simplify right side
    411,546.40x = 149,942,979,994.56
  5. Step 5: Solve for x
    x = 149,942,979,994.56/411,546.40
  6. Step 6: Final answer
    x = 364,340.40

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1.5x scale

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.