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Finding the Fourth Proportional to 896,752,928.43, 1,237,519,571.99 and 500,275,919.34

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Solution

The fourth proportional to 896,752,928.43, 1,237,519,571.99 and 500,275,919.34 is: 690,381,064.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,752,928.43 : 1,237,519,571.99 = 500,275,919.34 : x
  2. Step 2: Convert to fraction form
    896,752,928.43/1,237,519,571.99 = 500,275,919.34/x
  3. Step 3: Cross multiply
    896,752,928.43x = 1,237,519,571.99 × 500,275,919.34
  4. Step 4: Simplify right side
    896,752,928.43x = 619,101,241,576,039,040
  5. Step 5: Solve for x
    x = 619,101,241,576,039,040/896,752,928.43
  6. Step 6: Final answer
    x = 690,381,064.78

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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.