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Finding the Fourth Proportional to 1,949,662.60, 2,920,557.30 and 1,107,230.20

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Solution

The fourth proportional to 1,949,662.60, 2,920,557.30 and 1,107,230.20 is: 1,658,609.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949,662.60 : 2,920,557.30 = 1,107,230.20 : x
  2. Step 2: Convert to fraction form
    1,949,662.60/2,920,557.30 = 1,107,230.20/x
  3. Step 3: Cross multiply
    1,949,662.60x = 2,920,557.30 × 1,107,230.20
  4. Step 4: Simplify right side
    1,949,662.60x = 3,233,729,243,390.46
  5. Step 5: Solve for x
    x = 3,233,729,243,390.46/1,949,662.60
  6. Step 6: Final answer
    x = 1,658,609.67

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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.