Home / 629,173.62-868,449.33-428,086.26

Finding the Fourth Proportional to 629,173.62, 868,449.33 and 428,086.26

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Solution

The fourth proportional to 629,173.62, 868,449.33 and 428,086.26 is: 590,888.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,173.62 : 868,449.33 = 428,086.26 : x
  2. Step 2: Convert to fraction form
    629,173.62/868,449.33 = 428,086.26/x
  3. Step 3: Cross multiply
    629,173.62x = 868,449.33 × 428,086.26
  4. Step 4: Simplify right side
    629,173.62x = 371,771,225,679.21
  5. Step 5: Solve for x
    x = 371,771,225,679.21/629,173.62
  6. Step 6: Final answer
    x = 590,888.13

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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.