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Finding the Fourth Proportional to 543,447.80, 815,171.70 and 467,340.20

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Solution

The fourth proportional to 543,447.80, 815,171.70 and 467,340.20 is: 701,010.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,447.80 : 815,171.70 = 467,340.20 : x
  2. Step 2: Convert to fraction form
    543,447.80/815,171.70 = 467,340.20/x
  3. Step 3: Cross multiply
    543,447.80x = 815,171.70 × 467,340.20
  4. Step 4: Simplify right side
    543,447.80x = 380,962,505,312.34
  5. Step 5: Solve for x
    x = 380,962,505,312.34/543,447.80
  6. Step 6: Final answer
    x = 701,010.30

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Similar ratio
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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.