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Finding the Fourth Proportional to 503,118.40, 694,314.18 and 276,763.90

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Solution

The fourth proportional to 503,118.40, 694,314.18 and 276,763.90 is: 381,940.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,118.40 : 694,314.18 = 276,763.90 : x
  2. Step 2: Convert to fraction form
    503,118.40/694,314.18 = 276,763.90/x
  3. Step 3: Cross multiply
    503,118.40x = 694,314.18 × 276,763.90
  4. Step 4: Simplify right side
    503,118.40x = 192,161,100,282.10
  5. Step 5: Solve for x
    x = 192,161,100,282.10/503,118.40
  6. Step 6: Final answer
    x = 381,940.12

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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.