Home / 641,724.29-885,628.70-366,088.21

Finding the Fourth Proportional to 641,724.29, 885,628.70 and 366,088.21

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Solution

The fourth proportional to 641,724.29, 885,628.70 and 366,088.21 is: 505,229.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,724.29 : 885,628.70 = 366,088.21 : x
  2. Step 2: Convert to fraction form
    641,724.29/885,628.70 = 366,088.21/x
  3. Step 3: Cross multiply
    641,724.29x = 885,628.70 × 366,088.21
  4. Step 4: Simplify right side
    641,724.29x = 324,218,221,994.70
  5. Step 5: Solve for x
    x = 324,218,221,994.70/641,724.29
  6. Step 6: Final answer
    x = 505,229.78

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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.