Home / 629,985.88-945,161.34-203,586.76

Finding the Fourth Proportional to 629,985.88, 945,161.34 and 203,586.76

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Solution

The fourth proportional to 629,985.88, 945,161.34 and 203,586.76 is: 305,439.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,985.88 : 945,161.34 = 203,586.76 : x
  2. Step 2: Convert to fraction form
    629,985.88/945,161.34 = 203,586.76/x
  3. Step 3: Cross multiply
    629,985.88x = 945,161.34 × 203,586.76
  4. Step 4: Simplify right side
    629,985.88x = 192,422,334,887.86
  5. Step 5: Solve for x
    x = 192,422,334,887.86/629,985.88
  6. Step 6: Final answer
    x = 305,439.12

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Double scale
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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.