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Finding the Fourth Proportional to 227,760.60, 341,640.90 and 215,513.40

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Solution

The fourth proportional to 227,760.60, 341,640.90 and 215,513.40 is: 323,270.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,760.60 : 341,640.90 = 215,513.40 : x
  2. Step 2: Convert to fraction form
    227,760.60/341,640.90 = 215,513.40/x
  3. Step 3: Cross multiply
    227,760.60x = 341,640.90 × 215,513.40
  4. Step 4: Simplify right side
    227,760.60x = 73,628,191,938.06
  5. Step 5: Solve for x
    x = 73,628,191,938.06/227,760.60
  6. Step 6: Final answer
    x = 323,270.10

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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.