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Finding the Fourth Proportional to 242,694.80, 364,042.20 and 217,325.60

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Solution

The fourth proportional to 242,694.80, 364,042.20 and 217,325.60 is: 325,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,694.80 : 364,042.20 = 217,325.60 : x
  2. Step 2: Convert to fraction form
    242,694.80/364,042.20 = 217,325.60/x
  3. Step 3: Cross multiply
    242,694.80x = 364,042.20 × 217,325.60
  4. Step 4: Simplify right side
    242,694.80x = 79,115,689,540.32
  5. Step 5: Solve for x
    x = 79,115,689,540.32/242,694.80
  6. Step 6: Final answer
    x = 325,988.40

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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.