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Finding the Fourth Proportional to 543,170.20, 815,630.10 and 410,200.60

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Solution

The fourth proportional to 543,170.20, 815,630.10 and 410,200.60 is: 615,961.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,170.20 : 815,630.10 = 410,200.60 : x
  2. Step 2: Convert to fraction form
    543,170.20/815,630.10 = 410,200.60/x
  3. Step 3: Cross multiply
    543,170.20x = 815,630.10 × 410,200.60
  4. Step 4: Simplify right side
    543,170.20x = 334,571,956,398.06
  5. Step 5: Solve for x
    x = 334,571,956,398.06/543,170.20
  6. Step 6: Final answer
    x = 615,961.55

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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.