Home / 621,400,944.92-857,812,958.01-409,833,286.20

Finding the Fourth Proportional to 621,400,944.92, 857,812,958.01 and 409,833,286.20

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Solution

The fourth proportional to 621,400,944.92, 857,812,958.01 and 409,833,286.20 is: 565,754,375.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,400,944.92 : 857,812,958.01 = 409,833,286.20 : x
  2. Step 2: Convert to fraction form
    621,400,944.92/857,812,958.01 = 409,833,286.20/x
  3. Step 3: Cross multiply
    621,400,944.92x = 857,812,958.01 × 409,833,286.20
  4. Step 4: Simplify right side
    621,400,944.92x = 351,560,303,526,180,928
  5. Step 5: Solve for x
    x = 351,560,303,526,180,928/621,400,944.92
  6. Step 6: Final answer
    x = 565,754,375.50

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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.