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Finding the Fourth Proportional to 1,791,194.80, 2,688,865.80 and 1,082,023.60

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Solution

The fourth proportional to 1,791,194.80, 2,688,865.80 and 1,082,023.60 is: 1,624,288.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791,194.80 : 2,688,865.80 = 1,082,023.60 : x
  2. Step 2: Convert to fraction form
    1,791,194.80/2,688,865.80 = 1,082,023.60/x
  3. Step 3: Cross multiply
    1,791,194.80x = 2,688,865.80 × 1,082,023.60
  4. Step 4: Simplify right side
    1,791,194.80x = 2,909,416,252,832.88
  5. Step 5: Solve for x
    x = 2,909,416,252,832.88/1,791,194.80
  6. Step 6: Final answer
    x = 1,624,288.02

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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.