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Finding the Fourth Proportional to 699,934.60, 965,898.84 and 394,010.38

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Solution

The fourth proportional to 699,934.60, 965,898.84 and 394,010.38 is: 543,728.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,934.60 : 965,898.84 = 394,010.38 : x
  2. Step 2: Convert to fraction form
    699,934.60/965,898.84 = 394,010.38/x
  3. Step 3: Cross multiply
    699,934.60x = 965,898.84 × 394,010.38
  4. Step 4: Simplify right side
    699,934.60x = 380,574,168,989.96
  5. Step 5: Solve for x
    x = 380,574,168,989.96/699,934.60
  6. Step 6: Final answer
    x = 543,728.18

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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.