Home / 517,081.20-713,562.66-287,637.36

Finding the Fourth Proportional to 517,081.20, 713,562.66 and 287,637.36

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Solution

The fourth proportional to 517,081.20, 713,562.66 and 287,637.36 is: 396,934.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,081.20 : 713,562.66 = 287,637.36 : x
  2. Step 2: Convert to fraction form
    517,081.20/713,562.66 = 287,637.36/x
  3. Step 3: Cross multiply
    517,081.20x = 713,562.66 × 287,637.36
  4. Step 4: Simplify right side
    517,081.20x = 205,247,279,716.98
  5. Step 5: Solve for x
    x = 205,247,279,716.98/517,081.20
  6. Step 6: Final answer
    x = 396,934.33

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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.