Home / 919,674.09-1,377,517.31-445,364.82

Finding the Fourth Proportional to 919,674.09, 1,377,517.31 and 445,364.82

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Solution

The fourth proportional to 919,674.09, 1,377,517.31 and 445,364.82 is: 667,081.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,674.09 : 1,377,517.31 = 445,364.82 : x
  2. Step 2: Convert to fraction form
    919,674.09/1,377,517.31 = 445,364.82/x
  3. Step 3: Cross multiply
    919,674.09x = 1,377,517.31 × 445,364.82
  4. Step 4: Simplify right side
    919,674.09x = 613,497,746,588.21
  5. Step 5: Solve for x
    x = 613,497,746,588.21/919,674.09
  6. Step 6: Final answer
    x = 667,081.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.