Home / 641,855.25-885,757.14-347,505.15

Finding the Fourth Proportional to 641,855.25, 885,757.14 and 347,505.15

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Solution

The fourth proportional to 641,855.25, 885,757.14 and 347,505.15 is: 479,555.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,855.25 : 885,757.14 = 347,505.15 : x
  2. Step 2: Convert to fraction form
    641,855.25/885,757.14 = 347,505.15/x
  3. Step 3: Cross multiply
    641,855.25x = 885,757.14 × 347,505.15
  4. Step 4: Simplify right side
    641,855.25x = 307,805,167,799.27
  5. Step 5: Solve for x
    x = 307,805,167,799.27/641,855.25
  6. Step 6: Final answer
    x = 479,555.43

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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.