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Finding the Fourth Proportional to 629,650.36, 868,948.34 and 354,094.92

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Solution

The fourth proportional to 629,650.36, 868,948.34 and 354,094.92 is: 488,668.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,650.36 : 868,948.34 = 354,094.92 : x
  2. Step 2: Convert to fraction form
    629,650.36/868,948.34 = 354,094.92/x
  3. Step 3: Cross multiply
    629,650.36x = 868,948.34 × 354,094.92
  4. Step 4: Simplify right side
    629,650.36x = 307,690,192,936.43
  5. Step 5: Solve for x
    x = 307,690,192,936.43/629,650.36
  6. Step 6: Final answer
    x = 488,668.33

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Double scale
Find fourth proportional to 629,651.36, 868,949.72 and 354,095.92
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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.