Home / 505,867.17-698,088.26-276,419.42

Finding the Fourth Proportional to 505,867.17, 698,088.26 and 276,419.42

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Solution

The fourth proportional to 505,867.17, 698,088.26 and 276,419.42 is: 381,454.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,867.17 : 698,088.26 = 276,419.42 : x
  2. Step 2: Convert to fraction form
    505,867.17/698,088.26 = 276,419.42/x
  3. Step 3: Cross multiply
    505,867.17x = 698,088.26 × 276,419.42
  4. Step 4: Simplify right side
    505,867.17x = 192,965,149,138.62
  5. Step 5: Solve for x
    x = 192,965,149,138.62/505,867.17
  6. Step 6: Final answer
    x = 381,454.19

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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.