Home / 629,623.90-868,855.65-343,137.82

Finding the Fourth Proportional to 629,623.90, 868,855.65 and 343,137.82

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Solution

The fourth proportional to 629,623.90, 868,855.65 and 343,137.82 is: 473,516.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,623.90 : 868,855.65 = 343,137.82 : x
  2. Step 2: Convert to fraction form
    629,623.90/868,855.65 = 343,137.82/x
  3. Step 3: Cross multiply
    629,623.90x = 868,855.65 × 343,137.82
  4. Step 4: Simplify right side
    629,623.90x = 298,137,233,635.68
  5. Step 5: Solve for x
    x = 298,137,233,635.68/629,623.90
  6. Step 6: Final answer
    x = 473,516.39

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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.