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Finding the Fourth Proportional to 337,602.80, 506,404.20 and 211,631.60

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Solution

The fourth proportional to 337,602.80, 506,404.20 and 211,631.60 is: 317,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,602.80 : 506,404.20 = 211,631.60 : x
  2. Step 2: Convert to fraction form
    337,602.80/506,404.20 = 211,631.60/x
  3. Step 3: Cross multiply
    337,602.80x = 506,404.20 × 211,631.60
  4. Step 4: Simplify right side
    337,602.80x = 107,171,131,092.72
  5. Step 5: Solve for x
    x = 107,171,131,092.72/337,602.80
  6. Step 6: Final answer
    x = 317,447.40

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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.