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Finding the Fourth Proportional to 361,937.60, 543,165.60 and 203,998.40

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Solution

The fourth proportional to 361,937.60, 543,165.60 and 203,998.40 is: 306,143.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,937.60 : 543,165.60 = 203,998.40 : x
  2. Step 2: Convert to fraction form
    361,937.60/543,165.60 = 203,998.40/x
  3. Step 3: Cross multiply
    361,937.60x = 543,165.60 × 203,998.40
  4. Step 4: Simplify right side
    361,937.60x = 110,804,913,335.04
  5. Step 5: Solve for x
    x = 110,804,913,335.04/361,937.60
  6. Step 6: Final answer
    x = 306,143.69

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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.