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Finding the Fourth Proportional to 1,295,842.56, 1,943,764.05 and 664,353.60

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Solution

The fourth proportional to 1,295,842.56, 1,943,764.05 and 664,353.60 is: 996,530.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,842.56 : 1,943,764.05 = 664,353.60 : x
  2. Step 2: Convert to fraction form
    1,295,842.56/1,943,764.05 = 664,353.60/x
  3. Step 3: Cross multiply
    1,295,842.56x = 1,943,764.05 × 664,353.60
  4. Step 4: Simplify right side
    1,295,842.56x = 1,291,346,644,168.08
  5. Step 5: Solve for x
    x = 1,291,346,644,168.08/1,295,842.56
  6. Step 6: Final answer
    x = 996,530.51

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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.