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Finding the Fourth Proportional to 485,197.80, 727,796.70 and 367,099.80

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Solution

The fourth proportional to 485,197.80, 727,796.70 and 367,099.80 is: 550,649.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,197.80 : 727,796.70 = 367,099.80 : x
  2. Step 2: Convert to fraction form
    485,197.80/727,796.70 = 367,099.80/x
  3. Step 3: Cross multiply
    485,197.80x = 727,796.70 × 367,099.80
  4. Step 4: Simplify right side
    485,197.80x = 267,174,023,010.66
  5. Step 5: Solve for x
    x = 267,174,023,010.66/485,197.80
  6. Step 6: Final answer
    x = 550,649.70

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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.