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Finding the Fourth Proportional to 629,666.96, 868,914.96 and 343,180.88

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Solution

The fourth proportional to 629,666.96, 868,914.96 and 343,180.88 is: 473,575.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,666.96 : 868,914.96 = 343,180.88 : x
  2. Step 2: Convert to fraction form
    629,666.96/868,914.96 = 343,180.88/x
  3. Step 3: Cross multiply
    629,666.96x = 868,914.96 × 343,180.88
  4. Step 4: Simplify right side
    629,666.96x = 298,195,000,617.97
  5. Step 5: Solve for x
    x = 298,195,000,617.97/629,666.96
  6. Step 6: Final answer
    x = 473,575.75

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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.