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Finding the Fourth Proportional to 414,910.80, 620,983.80 and 365,144.40

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Solution

The fourth proportional to 414,910.80, 620,983.80 and 365,144.40 is: 546,500.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,910.80 : 620,983.80 = 365,144.40 : x
  2. Step 2: Convert to fraction form
    414,910.80/620,983.80 = 365,144.40/x
  3. Step 3: Cross multiply
    414,910.80x = 620,983.80 × 365,144.40
  4. Step 4: Simplify right side
    414,910.80x = 226,748,757,060.72
  5. Step 5: Solve for x
    x = 226,748,757,060.72/414,910.80
  6. Step 6: Final answer
    x = 546,500.01

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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.