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Finding the Fourth Proportional to 629,363.76, 944,340.92 and 313,845.28

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Solution

The fourth proportional to 629,363.76, 944,340.92 and 313,845.28 is: 470,915.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,363.76 : 944,340.92 = 313,845.28 : x
  2. Step 2: Convert to fraction form
    629,363.76/944,340.92 = 313,845.28/x
  3. Step 3: Cross multiply
    629,363.76x = 944,340.92 × 313,845.28
  4. Step 4: Simplify right side
    629,363.76x = 296,376,940,452.86
  5. Step 5: Solve for x
    x = 296,376,940,452.86/629,363.76
  6. Step 6: Final answer
    x = 470,915.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.