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Finding the Fourth Proportional to 3,558,652.20, 5,337,978.30 and 1,639,559.70

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Solution

The fourth proportional to 3,558,652.20, 5,337,978.30 and 1,639,559.70 is: 2,459,339.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558,652.20 : 5,337,978.30 = 1,639,559.70 : x
  2. Step 2: Convert to fraction form
    3,558,652.20/5,337,978.30 = 1,639,559.70/x
  3. Step 3: Cross multiply
    3,558,652.20x = 5,337,978.30 × 1,639,559.70
  4. Step 4: Simplify right side
    3,558,652.20x = 8,751,934,100,154.51
  5. Step 5: Solve for x
    x = 8,751,934,100,154.51/3,558,652.20
  6. Step 6: Final answer
    x = 2,459,339.55

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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.