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Finding the Fourth Proportional to 629,354.24, 868,504.32 and 342,874.24

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Solution

The fourth proportional to 629,354.24, 868,504.32 and 342,874.24 is: 473,163.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,354.24 : 868,504.32 = 342,874.24 : x
  2. Step 2: Convert to fraction form
    629,354.24/868,504.32 = 342,874.24/x
  3. Step 3: Cross multiply
    629,354.24x = 868,504.32 × 342,874.24
  4. Step 4: Simplify right side
    629,354.24x = 297,787,758,656.72
  5. Step 5: Solve for x
    x = 297,787,758,656.72/629,354.24
  6. Step 6: Final answer
    x = 473,163.98

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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.