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Finding the Fourth Proportional to 351,968.94, 486,117.99 and 238,594.86

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Solution

The fourth proportional to 351,968.94, 486,117.99 and 238,594.86 is: 329,532.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,968.94 : 486,117.99 = 238,594.86 : x
  2. Step 2: Convert to fraction form
    351,968.94/486,117.99 = 238,594.86/x
  3. Step 3: Cross multiply
    351,968.94x = 486,117.99 × 238,594.86
  4. Step 4: Simplify right side
    351,968.94x = 115,985,253,767.53
  5. Step 5: Solve for x
    x = 115,985,253,767.53/351,968.94
  6. Step 6: Final answer
    x = 329,532.64

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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.