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Finding the Fourth Proportional to 617,805,994.80, 926,694,822.60 and 311,015,722.80

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Solution

The fourth proportional to 617,805,994.80, 926,694,822.60 and 311,015,722.80 is: 466,516,450.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,805,994.80 : 926,694,822.60 = 311,015,722.80 : x
  2. Step 2: Convert to fraction form
    617,805,994.80/926,694,822.60 = 311,015,722.80/x
  3. Step 3: Cross multiply
    617,805,994.80x = 926,694,822.60 × 311,015,722.80
  4. Step 4: Simplify right side
    617,805,994.80x = 288,216,660,065,956,800
  5. Step 5: Solve for x
    x = 288,216,660,065,956,800/617,805,994.80
  6. Step 6: Final answer
    x = 466,516,450.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.