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Finding the Fourth Proportional to 508,626.83, 701,900.48 and 279,177.32

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Solution

The fourth proportional to 508,626.83, 701,900.48 and 279,177.32 is: 385,262.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,626.83 : 701,900.48 = 279,177.32 : x
  2. Step 2: Convert to fraction form
    508,626.83/701,900.48 = 279,177.32/x
  3. Step 3: Cross multiply
    508,626.83x = 701,900.48 × 279,177.32
  4. Step 4: Simplify right side
    508,626.83x = 195,954,690,007.73
  5. Step 5: Solve for x
    x = 195,954,690,007.73/508,626.83
  6. Step 6: Final answer
    x = 385,262.20

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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.