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Finding the Fourth Proportional to 1,954,450.73, 2,931,598.73 and 816,919.13

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Solution

The fourth proportional to 1,954,450.73, 2,931,598.73 and 816,919.13 is: 1,225,346.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954,450.73 : 2,931,598.73 = 816,919.13 : x
  2. Step 2: Convert to fraction form
    1,954,450.73/2,931,598.73 = 816,919.13/x
  3. Step 3: Cross multiply
    1,954,450.73x = 2,931,598.73 × 816,919.13
  4. Step 4: Simplify right side
    1,954,450.73x = 2,394,879,065,278.12
  5. Step 5: Solve for x
    x = 2,394,879,065,278.12/1,954,450.73
  6. Step 6: Final answer
    x = 1,225,346.35

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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.