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Finding the Fourth Proportional to 485,692.17, 670,439.96 and 365,183.47

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Solution

The fourth proportional to 485,692.17, 670,439.96 and 365,183.47 is: 504,092.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,692.17 : 670,439.96 = 365,183.47 : x
  2. Step 2: Convert to fraction form
    485,692.17/670,439.96 = 365,183.47/x
  3. Step 3: Cross multiply
    485,692.17x = 670,439.96 × 365,183.47
  4. Step 4: Simplify right side
    485,692.17x = 244,833,591,019.46
  5. Step 5: Solve for x
    x = 244,833,591,019.46/485,692.17
  6. Step 6: Final answer
    x = 504,092.11

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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.