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Finding the Fourth Proportional to 566,414.08, 781,649.60 and 311,765.44

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Solution

The fourth proportional to 566,414.08, 781,649.60 and 311,765.44 is: 430,235.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,414.08 : 781,649.60 = 311,765.44 : x
  2. Step 2: Convert to fraction form
    566,414.08/781,649.60 = 311,765.44/x
  3. Step 3: Cross multiply
    566,414.08x = 781,649.60 × 311,765.44
  4. Step 4: Simplify right side
    566,414.08x = 243,691,331,469.82
  5. Step 5: Solve for x
    x = 243,691,331,469.82/566,414.08
  6. Step 6: Final answer
    x = 430,235.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.