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Finding the Fourth Proportional to 1,945,338.84, 2,918,401.92 and 683,264.88

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Solution

The fourth proportional to 1,945,338.84, 2,918,401.92 and 683,264.88 is: 1,025,035.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945,338.84 : 2,918,401.92 = 683,264.88 : x
  2. Step 2: Convert to fraction form
    1,945,338.84/2,918,401.92 = 683,264.88/x
  3. Step 3: Cross multiply
    1,945,338.84x = 2,918,401.92 × 683,264.88
  4. Step 4: Simplify right side
    1,945,338.84x = 1,994,041,537,660.57
  5. Step 5: Solve for x
    x = 1,994,041,537,660.57/1,945,338.84
  6. Step 6: Final answer
    x = 1,025,035.59

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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.