Home / 629,596.84-868,818.28-343,110.78

Finding the Fourth Proportional to 629,596.84, 868,818.28 and 343,110.78

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Solution

The fourth proportional to 629,596.84, 868,818.28 and 343,110.78 is: 473,479.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,596.84 : 868,818.28 = 343,110.78 : x
  2. Step 2: Convert to fraction form
    629,596.84/868,818.28 = 343,110.78/x
  3. Step 3: Cross multiply
    629,596.84x = 868,818.28 × 343,110.78
  4. Step 4: Simplify right side
    629,596.84x = 298,100,917,729.06
  5. Step 5: Solve for x
    x = 298,100,917,729.06/629,596.84
  6. Step 6: Final answer
    x = 473,479.06

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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.