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Finding the Fourth Proportional to 314,388.25, 433,855.07 and 171,149.29

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Solution

The fourth proportional to 314,388.25, 433,855.07 and 171,149.29 is: 236,185.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,388.25 : 433,855.07 = 171,149.29 : x
  2. Step 2: Convert to fraction form
    314,388.25/433,855.07 = 171,149.29/x
  3. Step 3: Cross multiply
    314,388.25x = 433,855.07 × 171,149.29
  4. Step 4: Simplify right side
    314,388.25x = 74,253,986,337.65
  5. Step 5: Solve for x
    x = 74,253,986,337.65/314,388.25
  6. Step 6: Final answer
    x = 236,185.63

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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.