Home / 930,609.26-1,284,212.81-517,144.64

Finding the Fourth Proportional to 930,609.26, 1,284,212.81 and 517,144.64

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Solution

The fourth proportional to 930,609.26, 1,284,212.81 and 517,144.64 is: 713,644.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,609.26 : 1,284,212.81 = 517,144.64 : x
  2. Step 2: Convert to fraction form
    930,609.26/1,284,212.81 = 517,144.64/x
  3. Step 3: Cross multiply
    930,609.26x = 1,284,212.81 × 517,144.64
  4. Step 4: Simplify right side
    930,609.26x = 664,123,771,310.84
  5. Step 5: Solve for x
    x = 664,123,771,310.84/930,609.26
  6. Step 6: Final answer
    x = 713,644.06

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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.