Home / 629,619.89-868,850.15-343,133.82

Finding the Fourth Proportional to 629,619.89, 868,850.15 and 343,133.82

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Solution

The fourth proportional to 629,619.89, 868,850.15 and 343,133.82 is: 473,510.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,619.89 : 868,850.15 = 343,133.82 : x
  2. Step 2: Convert to fraction form
    629,619.89/868,850.15 = 343,133.82/x
  3. Step 3: Cross multiply
    629,619.89x = 868,850.15 × 343,133.82
  4. Step 4: Simplify right side
    629,619.89x = 298,131,869,261.40
  5. Step 5: Solve for x
    x = 298,131,869,261.40/629,619.89
  6. Step 6: Final answer
    x = 473,510.89

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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.