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Finding the Fourth Proportional to 629,272.86, 868,409.96 and 342,792.33

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Solution

The fourth proportional to 629,272.86, 868,409.96 and 342,792.33 is: 473,060.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,272.86 : 868,409.96 = 342,792.33 : x
  2. Step 2: Convert to fraction form
    629,272.86/868,409.96 = 342,792.33/x
  3. Step 3: Cross multiply
    629,272.86x = 868,409.96 × 342,792.33
  4. Step 4: Simplify right side
    629,272.86x = 297,684,271,869.65
  5. Step 5: Solve for x
    x = 297,684,271,869.65/629,272.86
  6. Step 6: Final answer
    x = 473,060.72

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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.