Home / 409,861.20-565,607.34-228,573.36

Finding the Fourth Proportional to 409,861.20, 565,607.34 and 228,573.36

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Solution

The fourth proportional to 409,861.20, 565,607.34 and 228,573.36 is: 315,430.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,861.20 : 565,607.34 = 228,573.36 : x
  2. Step 2: Convert to fraction form
    409,861.20/565,607.34 = 228,573.36/x
  3. Step 3: Cross multiply
    409,861.20x = 565,607.34 × 228,573.36
  4. Step 4: Simplify right side
    409,861.20x = 129,282,770,144.46
  5. Step 5: Solve for x
    x = 129,282,770,144.46/409,861.20
  6. Step 6: Final answer
    x = 315,430.61

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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.