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Finding the Fourth Proportional to 337,630.80, 506,446.20 and 211,659.60

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Solution

The fourth proportional to 337,630.80, 506,446.20 and 211,659.60 is: 317,489.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,630.80 : 506,446.20 = 211,659.60 : x
  2. Step 2: Convert to fraction form
    337,630.80/506,446.20 = 211,659.60/x
  3. Step 3: Cross multiply
    337,630.80x = 506,446.20 × 211,659.60
  4. Step 4: Simplify right side
    337,630.80x = 107,194,200,113.52
  5. Step 5: Solve for x
    x = 107,194,200,113.52/337,630.80
  6. Step 6: Final answer
    x = 317,489.40

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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.