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Finding the Fourth Proportional to 658,093.50, 908,175.03 and 386,165.92

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Solution

The fourth proportional to 658,093.50, 908,175.03 and 386,165.92 is: 532,912.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,093.50 : 908,175.03 = 386,165.92 : x
  2. Step 2: Convert to fraction form
    658,093.50/908,175.03 = 386,165.92/x
  3. Step 3: Cross multiply
    658,093.50x = 908,175.03 × 386,165.92
  4. Step 4: Simplify right side
    658,093.50x = 350,706,244,050.15
  5. Step 5: Solve for x
    x = 350,706,244,050.15/658,093.50
  6. Step 6: Final answer
    x = 532,912.49

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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.