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Finding the Fourth Proportional to 620,997.89, 931,496.84 and 200,273.77

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Solution

The fourth proportional to 620,997.89, 931,496.84 and 200,273.77 is: 300,410.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,997.89 : 931,496.84 = 200,273.77 : x
  2. Step 2: Convert to fraction form
    620,997.89/931,496.84 = 200,273.77/x
  3. Step 3: Cross multiply
    620,997.89x = 931,496.84 × 200,273.77
  4. Step 4: Simplify right side
    620,997.89x = 186,554,382,061.83
  5. Step 5: Solve for x
    x = 186,554,382,061.83/620,997.89
  6. Step 6: Final answer
    x = 300,410.65

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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.