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Finding the Fourth Proportional to 1,353,288.84, 1,867,538.55 and 741,464.81

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Solution

The fourth proportional to 1,353,288.84, 1,867,538.55 and 741,464.81 is: 1,023,221.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,288.84 : 1,867,538.55 = 741,464.81 : x
  2. Step 2: Convert to fraction form
    1,353,288.84/1,867,538.55 = 741,464.81/x
  3. Step 3: Cross multiply
    1,353,288.84x = 1,867,538.55 × 741,464.81
  4. Step 4: Simplify right side
    1,353,288.84x = 1,384,714,120,812.27
  5. Step 5: Solve for x
    x = 1,384,714,120,812.27/1,353,288.84
  6. Step 6: Final answer
    x = 1,023,221.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.