Home / 505,949.64-698,151.06-279,581.64

Finding the Fourth Proportional to 505,949.64, 698,151.06 and 279,581.64

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Solution

The fourth proportional to 505,949.64, 698,151.06 and 279,581.64 is: 385,789.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,949.64 : 698,151.06 = 279,581.64 : x
  2. Step 2: Convert to fraction form
    505,949.64/698,151.06 = 279,581.64/x
  3. Step 3: Cross multiply
    505,949.64x = 698,151.06 × 279,581.64
  4. Step 4: Simplify right side
    505,949.64x = 195,190,218,322.54
  5. Step 5: Solve for x
    x = 195,190,218,322.54/505,949.64
  6. Step 6: Final answer
    x = 385,789.82

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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.