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Finding the Fourth Proportional to 922,193,997.99, 1,381,843,214.78 and 627,229,794.51

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Solution

The fourth proportional to 922,193,997.99, 1,381,843,214.78 and 627,229,794.51 is: 939,859,983.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,193,997.99 : 1,381,843,214.78 = 627,229,794.51 : x
  2. Step 2: Convert to fraction form
    922,193,997.99/1,381,843,214.78 = 627,229,794.51/x
  3. Step 3: Cross multiply
    922,193,997.99x = 1,381,843,214.78 × 627,229,794.51
  4. Step 4: Simplify right side
    922,193,997.99x = 866,733,235,648,361,088
  5. Step 5: Solve for x
    x = 866,733,235,648,361,088/922,193,997.99
  6. Step 6: Final answer
    x = 939,859,983.41

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1.5x scale

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.