Home / 913,163.92-1,260,141.96-505,255.12

Finding the Fourth Proportional to 913,163.92, 1,260,141.96 and 505,255.12

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Solution

The fourth proportional to 913,163.92, 1,260,141.96 and 505,255.12 is: 697,238.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,163.92 : 1,260,141.96 = 505,255.12 : x
  2. Step 2: Convert to fraction form
    913,163.92/1,260,141.96 = 505,255.12/x
  3. Step 3: Cross multiply
    913,163.92x = 1,260,141.96 × 505,255.12
  4. Step 4: Simplify right side
    913,163.92x = 636,693,177,216.84
  5. Step 5: Solve for x
    x = 636,693,177,216.84/913,163.92
  6. Step 6: Final answer
    x = 697,238.65

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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.