Home / 919,507.60-1,379,313.24-279,832.15

Finding the Fourth Proportional to 919,507.60, 1,379,313.24 and 279,832.15

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Solution

The fourth proportional to 919,507.60, 1,379,313.24 and 279,832.15 is: 419,764.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,507.60 : 1,379,313.24 = 279,832.15 : x
  2. Step 2: Convert to fraction form
    919,507.60/1,379,313.24 = 279,832.15/x
  3. Step 3: Cross multiply
    919,507.60x = 1,379,313.24 × 279,832.15
  4. Step 4: Simplify right side
    919,507.60x = 385,976,189,472.67
  5. Step 5: Solve for x
    x = 385,976,189,472.67/919,507.60
  6. Step 6: Final answer
    x = 419,764.00

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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.