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Finding the Fourth Proportional to 591,892.20, 887,838.30 and 217,866.60

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Solution

The fourth proportional to 591,892.20, 887,838.30 and 217,866.60 is: 326,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,892.20 : 887,838.30 = 217,866.60 : x
  2. Step 2: Convert to fraction form
    591,892.20/887,838.30 = 217,866.60/x
  3. Step 3: Cross multiply
    591,892.20x = 887,838.30 × 217,866.60
  4. Step 4: Simplify right side
    591,892.20x = 193,430,311,770.78
  5. Step 5: Solve for x
    x = 193,430,311,770.78/591,892.20
  6. Step 6: Final answer
    x = 326,799.90

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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.