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Finding the Fourth Proportional to 399,171.60, 598,757.40 and 273,200.40

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Solution

The fourth proportional to 399,171.60, 598,757.40 and 273,200.40 is: 409,800.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,171.60 : 598,757.40 = 273,200.40 : x
  2. Step 2: Convert to fraction form
    399,171.60/598,757.40 = 273,200.40/x
  3. Step 3: Cross multiply
    399,171.60x = 598,757.40 × 273,200.40
  4. Step 4: Simplify right side
    399,171.60x = 163,580,761,182.96
  5. Step 5: Solve for x
    x = 163,580,761,182.96/399,171.60
  6. Step 6: Final answer
    x = 409,800.60

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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.